First is a blurb from Businessweek:
Project Agape takes a different tack with its Causes application, which raises awareness and money for nonprofits and other causes. The service takes a 4% transaction fee on contributions raised through the application. Since launching nearly a year ago, the application has generated more than $2 million in donations.
Second is about another widget company trying to do something similar:
Dank Apps, the company behind the Lotto application on Facebook, has rolled out a series of new applications called Social Change that give a significant portion of proceeds to charity. The initial set of apps consists of: