After reading the The 4-Hour Workweek by Tim Ferriss, I started following his blog in my feed reader. Normally the posts are interesting, although not completely applicable for my life, but a recent post caught my eye.
Tim is putting together a challenge with an anonymous patron to donate $3 for each person who signs up and starts following him on twitter between now and March 23rd. If he hits his goal that will mean $150K for some well deserving public schools.
If you haven't tried twitter here's a perfect reason to start. If for some reason you don't like his tweets, just unfollow him after March 23rd.