http://dir.yahoo.com/Arts/Events/Festivals/Burning_Man_Project/Camps_and_Projects/

some interesting stuff here =)

Silicon valley burn camps:
http://www.burningsilicon.com/camps.html

Seattle’s really getting into it:
http://www.burningmanseattle.com/

and for your inner Borg:
http://www.borg2.org/

If you’re poly:
http://www.azcompuguy.com/polyparadise/

an alternate burn fest:
http://www.burningflipside.com/