CNC Machines
CNCCOOKBOOK - The CNC Cookbook is a blog which give you the recipe for CNC success. Each serving is a delightful surprise.
Makerbot - Makerbot Industries is the maker of The Thing-O-Matic 3D printer. It is amazing what is possible.
Joes C\NC - Joe's CNC offers plans to make your own CNC Router tables. The community is awesome.
CNCZONE - CNCZONE is a community forum and blog host for all thing related to CNC machines.
Electronics
Minibloq - Programming a microcontroller should be easy.
Arduino - Arduino and other Arduino-compatible boards.
Adafruit - Adafruit is a blog about teaching electronics design to all people.
Tronixstuff - Arduino Electronics tutorials.
Robotics
Automaton - Talk about leading edge. Automaton provides the latest in robot development.
SJET - Skylar Tibbots blog on Robotics and Self Replication.
Radio Control
Quad Addicts Blog - Quads are four rotor helicopter. Quad Addict explores all types of Quads.
Jim T. Graham - This man is one of the driving forces behind R/C Groups. Always interesting and usually funny.
RC Groups - R/C Groups is one of the largest online sources of information on Radio Control.
WOODWORKING
Lumberjocks Woodworking - Lumberjocks is a site which lists some fine woodworking projects.
Arkwood blogspot - Interesting site for birdhouses
Kevin Brady - All about dust collection.
Claremount White Dorpers Blog - Life Down Under, Farming, Solar Power and CNC.
Anamatronics
John Cox Creature Worhshop - These folks make amazing Anamatronics for Movie and TV.
GREEN TECHNOLOGY
Inhabitat - Green Technology and projects.
CAD DRAWING
Google Sketchup - The official Google Sketchup blog explains how to use their free 3D software.
Alibre Design - Alibre Design Forums. Information on Alibre Design parametric Cad program.
Autodesk Blog - Between the lines. All things Autodesk
Rhino News Etc. - Rhino 3D Blog.
Solidworks Blog - Solidworks 3D CAD.
Kinetics
Lunatins - This guy makes dominoes look tame. Exploding popsicle stick mazes.
Metal Working
Focuser - Aluminum Anodizing kits and instructions.
Sterling Steele - Plans for CNC conversions of Mini mills and Lathes.
Otto's Pastimes - Eclectic experiments on a variety of topics.
3D Printers
3DLPrint - 3D Resin Printer project notes.
Thingiverse - Free 3D models to use with 3D printers. Share digital designs that can be made into real, physical objects!
Makerbot Blog - Blog for Makerbot Industries.
RapMan Blog - Rapman V3 Blog – Bits From Bytes.
3D Printer Universet - 3D Printer Univers
RepRap - Free Desktop 3D plastic printer
RepRap Blog - Blog of all things related to RepRap.