Hi folks,

I stumbled over a site, where you can commit yourself to some action  
- if enough people are also willing to help.
Could be useful in lots of situations...

http://www.pledgebank.com

I just signed for buying the $100 laptop for $300
(2,828 people have signed up, 97172 more needed)

http://www.pledgebank.com/100laptop

Cheers,

Markus