3D Engineer - general information about SolidWorks, tutorials, more by Christopher McAndrew

3D Mojo - about 'product information everywhere' by Seemage

3D Roadie - about 3ds Max by Autodesk's Shawn Hendriks

The 3D Scan - information about 3D scanning, design, reverse engineering, inspection more, by Rob Glassburn

AEC UK - about architectural, engineering, construction industry in UK

Alibre Blog - corporate blog

All Things BIM - blogs related to BIM, Revit, architecture, ArchiCAD, visualization more by James Van

Amalgamation - blog about Autodesk 3ds Max Entertainment Suites, Autodesk Smoke, by Gary Davis

Angel's Civil 3D Thoughts - about Autodesk Civil 3D by Angel Espinoza of Ketiv

Anna's SolidMuse - about SolidWorks

The Architect's Desktop - using Autodesk Architectural Desktop by David Koch

Architectural Evangelist - focuses on real estate trends, research, news, for AEC firms

Archoncad - about Vectorworks, by Jonathan

ASCENT Blog - topics include engineering, architecture, design insight featuring software, by Elvis Sverko, Martha Hollowell, Jennifer MacMillan

Autodesk Blogs - news, tips, resource about Autodesk

AutoCAD DevBlog - online resource for software developers dealing with AutoCAD, Autodesk technologies

AutoCAD Electrical Etcetera - by product architect for AutoCAD Electrical, Nate Holt (formerly Controlling Machine)

AutoCAD Insider - about AutoCAD, Autodesk by Heidi Hewett of Autodesk

AutoCAD WS Blog - blog for AutoCAD users, by Autodesk

Autodesk Manufacturing Northern Europe Blog - official blog of Autodesk Manufacturing technical team based in Northern Europe, includes news, tips, tricks, advice, updates on products, by multiple authors

Autodesk University - by Autodesk's Joseph Wurcher

Axis CAD Solutions - tips, information related to CAD, visualization, more by Rob Rodriguez

Being Civil - about Civil 3D by Brian Kling, Jason Hickey, Justin Ziemba of Autodesk

beside the cursor - AutoCAD related by Richard Binning, whose interests seem to include VBA, AutoLISP, customizing

Beth's CAD Blog - for Autodesk products used in architectural realm - AutoCAD, Architectural Desktop, Building Systems, Revit, Viz by Beth Powell

Between the Lines - AutoCAD blog by Shaan Hurley of Autodesk

Between the Walls - Architectural Desktop blog by Chris Yanchar of Autodesk

Beyond the Paper - advanced technologies for design, review, virtualization by Autodesk's Volker Joseph

Beyond the Silos - information related to BIM, Revit, by Aaron Vorwerk

Bimboom - blogs related to Revit, BIM, Rendering, Navisworks

Bimpod - BIM related blogs

(bim)x - about using Revit, NavisWorks, other programs for virtual design, construction by Laura Handler of Tocci Building Corporation

BIM & BEAM - about Revit Structure by Autodesk's Nicolas Mangon, Wai Chu, Tom Culotta

BIM and IPD - about BIM, integrated project delivery by Tony Isenhoff

BIM Apps - information related to API applications for Autodesk’s BIM tools, by Emile Kfouri

BIM Blog - tips, information about Revit, Civil 3D, AutoCAD architecture, more by multiple authors (in German)

BIM Blog.ca - information on BIM process, Revit architecture, Revit MEP, Revit Structure, Navisworks, by Dimitri Harvalias, Edwin Guerra, Bob Heyman

BIM Civil - about AutoCAD, BIM, Civil 3D, by Gaurav Bagga

BIM for real - information related to Revit, BIM in construction, architecture, design

BIM Integrated Design - information related to BIM

BIM New World - about BIM, by Teresa Martin

BIM on the Rocks - about Civil 3D by Dana Breig Probert, PE, of Autodesk

BIM Technologist - about BIM, Revit, CAD and more by authors Ryan McGarrie and Mark Thorley

BIM ThinkSpace - about CAE, BIM data sharing methodologies by Bilal Succar

BIM Toolbox - tips, information, views on BIM, Autodesk technologies, by multiple authors

BIM Troublemaker - blog covering architecture, BIM, Revit related information

BIM Wits - tips, procedures related to Revit, BIM

BIMology - provides useful tips for architectural desktop users, by Tomislav Zigo

BLAUGI - official blog of Autodesk Users Group International

Breaking Down Walls - about Autodesk building products (ADT, Revit) by Matt Dillon

Budweiser Blog - company information, CAD, GIS news more, by Vladimir Michl, J Binter

Buildipedia - news, tips about building, architecture

The Building Coder - about Revit API by Autodesk's Jeremy Tammik

C3D Benelux - about AutoCAD, Civil 3D, by multiple authors (in Dutch)

C3D CAD Manager - about AutoCAD, Civil 3D more, by Todd Nochomson

C3D Cougar - tips, information about AutoCAD, Civil 3D environment

C3DXtreme - tips on Civil 3D, by Justin Ralston

CAD & 3D - software, resources for designers, architects, graphics artists

CAD Addict - tips on Revit, AutoCAD, SketchUp, Rhino, Maxwell, more by Marti Broquetas

CAD-1 Blog - about Autodesk software by reseller

CAD-a-Blog - about CAD tips, drafting techniques, tech news, more, by Brian Benton

CADit - about CAD, BIM, GIS, IPD, VCD, PLM, more by John Benstead

CADman-Do - tips, information about CAD, by David Cohn

CAD Application Development - developing software that works with Autodesk applications by Matt Mason

CADFanatic.com - about SolidWorks by Brian McElyea

Cadline - tips, information, tutorial about AutoCAD, BIM, Civil 3D, Inventor, 3D Max, Vault more, by multiple authors

CAD Clues - tips, information related to AutoCAD, Civil 3D, Inventor, more by Gil Cordle

The CAD Geek - information about AutoCAD, Civil 3D, CAD management, more, by Donnie Gladfelter

CAD Graphics BlogWorks - about SolidWorks, cover topics to encourage SolidWorks CAD entrepreneurs, contractors, freelancers by Michael Wallom

CAD Guru - BIM, Revit tips for architects, engineers, contractors, by Emmanuel Garcia

The CAD Industry - commentary on CAD industry, interoperability by Evan Yares

CAD Insider - CAD, CAM, CAE industry insights, new, interesting products, more by TenLinks' Roopinder Tara

The CAD Masters - about AutoCAD architecture, Revit, BIM, Civil 3D, MEP, vault, more, by multiple authors

CAD Notes - AutoCAD, general CAD tips, tricks, tutorials by Edwin Prakoso

CAD Panacea - AutoCAD links, tips, more by RK McSwain

CAD Pilot - posts on Civil 3D, The Jump Platform, Autodesk USCA County Kit by Tench Tilghman

CAD Professor - about AutoCAD, Autodesk Inventor, 3D CAD software, by Sunith Babu

CAD Shack - about Revit MEP, AutoCAD MEP by Todd Shackelford

CAD Speed - blog focussing on hardware for 3D CAD applications by multiple authors

CAD Studio Blog - general information about CAD, GIS applications, by Vladimir Michl, J.Binter

CAD Tutorials - tutorials, tricks, tips for using AutoCAD, CATIA, Inventor, SolidWorks, Mastercam

CADDManager blog - sharing thoughts, ideas, musings, more by Mark W. Kiker

CFD Analysis Consulting Blog - about computational fluid dynamics, thermal solutions, by Imaginit Technologies

Civil - Made in France - (French) by Autodesk's Willy Luce

Civil 3D AOS - about Civil 3D, related topics by Wes Ashworth

Civil 3D Blog - tips, information about AutoCAD, Civil 3D, other CAD applications, by Vladimir Michl, Martin Folber (in Czech)

Civil 3D Br - information, tips about 3D, by Daniel Queiroz, Daphne Couri (in Portuguese)

Civil3D Easy - about AutoCAD, Civil 3D (in Polish)

The Civil 3D Experience - about Civil 3D, by Harold Alberto

Civil 3D Reminders - rarely used but useful commands for Civil 3D by Christopher Fugitt

Civil 3D Trix - information about Civil 3D, by Bill Neuhauser

Civil 3D with Dirt Diva - tips, information for Autodesk's Civil 3D by Melanie Santer

Civil 4D - blog dealing with AutoCAD, Civil 3D topics, by multiple authors

Civil Digest - blog on AutoCAD, Civil 3D, by Autodesk’s Juan Soto, Istvan Voiculescu

Civil Intentions - blog covering various Civil 3D, AutoCAD topics, by Donal McMoreland

Civilized Development - by Isaac Rodriguez, software development lead for AutoCAD Civil 3D API

Classroom Connection - education and real world application by Autodesk's Brian Donnelly

complexitys - blog on Rhino, architecture, complex geometry, more, multiple contributors (in French)

Computer-Aided Design - CAD related information for architects, contractors, by Emmanuel Garcia

Connected - about Constructware, AEC project collaboration by Autodesk's Jason Pratt, Mike Gemmell 

Cracking the Vault - about Vault by Autodesk's Richard Rankin, Jason Summerfield, Francesco Tonioni

Creaform Blog - news, opinions, tips, tricks about new 3D technologies, new methodologies, multiple authors

Crossing the Line - blog about AutoCAD, Civil 3D, by Tommie Richardson

Cup o CAD .NET - blog with samples, tutorials, programming for AutoCAD with .NET API by Bert Vanpeteghem

Daily AutoCAD - news, articles, lessons on AutoCAD by Orhan Toker

Daily CAD CAM - blog covering AEC, MCAD, GCAD, CAM, PLM, CFD related information

Davetyner - about AutoCAD Plant 3D, Autoplant, plant software, 3DS Max, Maxscript, by multiple authors

DaVinci - about Alias by Autodesk's Michal Jelinek

Deelip.com - about CAD, business, CAD industry and CAD media by Deelip Menezes

Design Cubed - about architecture, Revit, more by Stephen

Design-Engine/Education - blog with Pro/E tutorials, tips, training, more by Brat Brejcha

Design and Motion - Autodesk design, manufacturing applications, interoperability, digital prototyping by John Evans

Dezignstuff - product design, 3D CAD modeling, and SolidWorks, by Matt Lombard, author of SolidWorks Bible

Digging Into Civil 3D - tips, tutorials about AutoCAD, Civil 3D, more by Rick Ellis

digitalurban.org - techniques to visualize cityscape, work at Centre for Advanced Spatial Analysis, University College London by Dr Andrew Hudson-Smith

The Dirt - about Autodesk Civil3D and mapping, GIS by Autodesk's Pete Kelsey

Do U Revit - blog on Revit, BIM by Dave Baldacchino, Steven Campbell

dODDS and Ends - about Autodesk's construction apps by Autodesk's Jason Dodds

Don’t Think: Do Revit - tips, information About Revit, by multiple authors

Doug Bowers Consulting - discusses design software for AEC industry

Driveworks Blog - blog dealing with software for design automation and product configuration

Duct Duct Pipe - Revit MEP blog, by Bill Wright

Eat Your CAD - features articles, columns, downloads for CAD users, serves mainly MicroStation industry

ECAD - about Autodesk, COADE, other CAD/CAM related products by Kyle Pope of ECAD

Ellipsis - by Autodesk technical evangelists Rob Cohee, Justin Hoey, Jay Tedeschi, Brian Sather, Chris Hall

Eric Chappell’s Blog - about Civil 3D

Everything You Wanted To Know About Revit, BIM, LEED... - blog by Gregory Arkin of CADD Centers of Florida

Family Jewels-Creating Quality BIM Content - about Revit by Autodesk's William Spier, Ian McGaw, Martin Schmid, Jason Spleha

Form Follows Performance - blog about BIM, Revit, 3D modeling, visualization, architecture, building analysis, more, by Jens Voshage, Kerstin Muller

From the Ground Up - about Civil 3D, European perspective by Ove Cervin, Jack Strongitharm of Autodesk

Get the Jump On AutoCAD Civil 3D - blog by Tench Tilghman, president, founder of MoreCompetency

Graphisoft - BIM engine by ArchiCAD

Hanley Innovations - about aerodynamics, fluid dynamics, CAD geometrics, aircraft design more, by Patrick Hanley

Hazudra Fodder - blog about CAD, AutoLISP programming

HOK BIM Solutions - tips, information related to BIM, by multiple authors

HyperPics - about AutoCAD by power user Lee Ambrosius

In the Pipes - about Autodesk plant products by Autodesk's Ursula Sadiq

Inside the Factory - designing Revit user experience by Autodesk's Tom Vollaro, Erik Egbertson

Inside the System - MEP BIM, sustainability, new technology by Autodesk's Kyle Bernhardt

iRevit - blog on Revit, BIM, by Craig Barbieri

It’s All Just Ones and Zeros - Vault customization by Autodesk's Doug Redmond

It's Alive in Lab - about Autodesk Labs by Autodesk's Scott Sheppard

Jeff's Tool Shed - about SolidWorks by Jeff Mirisola

Joel Howe’s Blog - about 2D, 3D animation services, interactive content production, more

JTB World - software engineering/architecture/development, CAD, AutoCAD, ADT, VB.NET, VBA, AutoLISP, Access, SQL Server, more

Knowing What You Don't Know About CAD - Autodesk products for building designers, engineers by Mike Massey

The Kung Fu Drafter - CAD centric blog with tutorials, reviews, general CAD information, humor, also covering other technology updates by Curt Moreno

Land Development Engineering - about Civil 3D by Kevin Spear

Larry Young Live - about Civil 3D, Map 3D, by Larry Young

Learn AutoCAD - by Daryl Gregoire

Learn ADT - about Autodesk's Architectural Desktop by Daryl Gregoire

Lenny's SolidWorks Resources - by Lenny Kikstra

LT is Still AutoCAD - AutoCAD LT blog by Penn Dean

LT Unlimited - AutoCAD LT by Autodesk's Kate Morrical

The Mad Cadder - discussion of Autodesk products, Architectural Desktop, Building Systems, Revit, plus tips, tricks, information from other resources

Mastercam - blog based on Mastercam news, tech tips and articles

MEP BIM Engineer - about AutoCAD MEP, architectural desktop, Revit architecture, Revit MEP, by David Butts

MEP-BIM-Guru - Autodesk Revit blog, by Phil Pleiss

MicroConcepts Blog - Autodesk inventor, mechanical blog providing engineering productivity solutions

Mike Puckett's Blog - about SolidWorks

Mistress of Dorkness - CAD technology, especially FM, BIM by Melanie Stone

Morphorm - about Alias by Autodesk's Kevin Richards, Jamie Gilchrist, Chris Hall

Mountain-Wave - SolidWorks tips, tricks podcasts by Ben Eadie

Navisworks InfoCenter - tips, news about Autodesk Navisworks products, by Autodesk’s Dwane Lindsey

Novedge - blog by graphics, design store

ObjectARX & Dummies - learn about ObjectARX, AutoCAD programming by Fernando Malard

Off Course - On Target - by Autodesk's Wayne Hodgins

OrthoGraph Blog - news, events, product releases about the Orthograph Software family

Outside the Box - about AutoCAD, ObjectARX by Owen Wengerd

Para-analytics new - blogs related to Revit, BIM

Paradigm Shift - blogs on BIM, Revit, more by Sean Burke

Paul Hamilton's Blog - views, opinions, about CAD, PLM, product development process, focused on explicit/direct modeling

Phil Bernstein's Blog - AEC insights, trends by Autodesk's Phil Bernstein

PLM Think Tank - about product life cycle management, by Oleg Shilovitsky

Process Design from Outside new - about AutoCAD Plant 3D, by multiple authors

Ray Kurland's Blog - view on mechanical CAD/PLM industry, its happenings

Revitdialog - provide tips on Revit architecture

Render Plus - about tools to enhance Google SketchUp

Revit Archcenter - talks about Revit methods by Dwane Lindsay

Revit Beginners - discusses questions, tips regarding Revit, by David Duarte

The Revit Blog - about Revit, by James Herndon

RevitCat - about Revit tips, tricks by Tim Waldock

Revit Clinic - by Autodesk's Harlan Brumm, Kathryn Langan, Jeremy Smith, Ryan Duell

Revit Coaster - about Revit, by Troy Gates

Revit Detail - news, tutorials, blogs about Revit, BIM, by Peter McCarthy

Revit Fact Check - tips, tricks about BIM, Revit, by Jay Zallan

Revit Fix - discusses tips, fixes, workarounds, findings related to Autodesk’s Revit architecture, by Brian Renehan

Revit Futures - about Revit modeling tools, families, categories, hosting, by Kelly Cone

Revit in Plain English - about Autodesk Revit by Jay Polding

REVITit - tips, tricks about Revit Families, renderings, lighting more, by multiple authors

Revitize - about Revit, AutoCAD by Nicholas Iyadurai

Revittize - information related to Revit, BIM, roofs, rendering, more, by Albuquerque

The Revit Kid - useful tips, tutorial, videos on Revit

Revit MEP - blogs about Revit, BIM workflows, building performance analysis, by Scott Brisk

Revit OpEd - by independent consultant Steve Stafford

Revit Rants - about using Revit, various work processes, tricks by Chris Price

Revit Rocks - for 'all things Revit,' by Daryl Gregoire

Revit Rossbar - blog covering various CAD, Revit, BIM topics, by multiple authors

Ricky Jordan's Blog - about SolidWorks

Rob Rodriguez Blog - about SolidWorks

RobiNZ CAD Blog - CAD, design by Robin Capper, New Zealand

RockSolid Perspective - SolidWorks news, tips, tricks by Jason Raak

Shark Attack - blog with tips, tutorials, news related to Punch! Software's ViaCAD, Shark CAD products by Tim Olson

Simply Civil 3D - about Civil 3D

Simply Complex - about modeling complex geometry in AEC industry using Autodesk products, by Marcello Sgambelluri

SketchUpdate - about SketchUp, rendering, 3D printing, more

SketchUp-Ur-Space - tips, blogs, articles, interviews, tutorials on SketchUp

smallGuru - blog with tutorials, screencasts on customizing Inventor, CAD

SolidJott - SolidWorks tips, tricks, information, add-ins, more by Ben Eadie

SolidMentor - SolidWorks video tutorials, tips, news by Ben Eadie

SOLIDNotes - about SolidWorks by reseller Graphic Systems

SolidSmack - about SolidWorks, CAD by Josh Mings

The SolidThinking Blog - about solidThinking

SolidWorks Blog - journal of topics related to 3D solid modeling, SolidWorks, for discussion of SolidWorks related topics by SolidWorks

SolidWorks Geeks - forum, blog, gallery by Alex Ruiz

SolidWorks: Heard! - tips, tech talk podcasts by Digital Dimensions

SolidWorks Teacher - for assisting Science, Technology, Engineering, Mathematics (STEM) instructors in incorporating SolidWorks into their course curriculum

Spiderinnet1 - blog covering various Add-In/API wizards, coders, widgets related to AutoCAD .NET

Synergis CAD Blog - source of information for Autodesk software users

Systems Design Blog - tips, information related to AutoCAD Electrical, by Autodesk’s Ananda Arasu, Jared Bunch

Talking Transportation - blog related to Autodesk transportation in Civil 3D, by Wes Newman, Alan Gilbert

Tampa Bay Revit User Group - about Revit, by Patrick Davis

Ted Boardman's Visualization Blog -3D visualization covering Autodesk's 3ds Max, related subjects

Terminal AutoCAD - blog about automating AutoCAD Electrical, by Stan Wile

Through the Interface - about AutoCAD development by Autodesk's Kean Walmsley

Thomas Parel Industrial Design Blog

To3D Mechanical CAD - about 3D, cloud, collaboration, design, by Jim Foster

Voice of Community - Autodesk user groups by Autodesk's Ray Eisenberg

What a Mesh! - AutoCAD 3D modeling, workflows by Autodesk's Guillermo Melantoni

What’s the Word on AutoCAD - news, tips, tricks, support on AutoCAD, by Issac Harper

What Revit Wants - tips, blogs on Autodesk Revit, by Luke Johnson

Who’s Afraid of Big Bad BIM - about BIM, AEC, building analysis, more by Erik Lewis

Will Render for Food - BIM, Revit, more, by Beau Turner

Without A Net - about AutoCAD, AutoCAD support issues by Autodesk's Tom Stoeckel, Silvia Menon, Shawn Niles

WorldCAD Access - commentary on various CAD subjects, by Ralph Grabowski

Zooming with Revit - tips, tricks about Revit architecture, BIM, by Greg McDowell Jr