Many of the following links I use in my studies, others are just informative and a couple of fun ones.
Wolfram Math world
Engineering toolbox
Hyperphysics
ScienceDaily
Physicsandcake
Technology review by MIT
Physics and Physicists
Educypedia
PhysOrg-science news
NMsolarenergyassociation
Hans Bethe - Quantum Theory at Cornell
Richard Fynman Lectures from Microsoft
Center for Quantum Computation
Kurzweil accelerating intelligence
Greentransportation
TED
Streetfire
Gpopshopturbos
TurbosbyGarrett
Jay Leno's Garage
CR4Forum
Eng-tips Forum
Sloan Automotive Laboratory
SBK superbike
Pipeburn
Caferacer culture