This story comes recommended to us from two sources: Shel Israel and Sarah Evans @PRsarahevans. 

Stacey Monk started Tweetsgiving to demonstrate the power of Twitter and social web. Within 48 hours, she raised over $10,000 from 336 contributors. The money helped fund a new classroom for a school in Tanzania. 

In this video Shel Israel tells us why Stacey Monk's Tweetsgiving is one of his favourite stories from his new book, Twitterville.