i hope you guys know about it, it's some really good stuff for a really good cause (imo)
basically, pay whatever you want for a number of games, and whatever you pay goes towards a charity you choose.
Games include:
Crisis 2
MoH
Mirrors edge
Dead Space
Dead Space 3
Burnout Paradise: The Ultimate Box
C&C Red Alert 3 - Uprising
Populous origin
and i think Sims 3 and BF3 are also included if you pay a bit more.
EDIT: the Humble Bundle is now Extending to alot more than just Origin, so make sure to take a look! something you want might just be there xD