You just have to play around with the site. There's alot of stuff on there, a few things I found:
MIG Welding
TIG Welding
Make a small forge
Railway Line Anvil
Make a carbon arc torch for your 220 volt stick welder
Fun with clamps
Adjustable Welding/Bike Worktable
Build a Microwave Transformer...
Something I ran into while Googling for info on MIG welding:
http://www.instructables.com/
Part redneck, part urban hippie. Some stupid stuff but a lot of cool ways to reuse things. Has a good articles on welding too, and stuff that could apply to the garage.
Enjoy.