Pure CSS Francine - HTML/CSS portrait in the style of an 18th century painting
UpEffect - Crowdfunding for social good products
SuperPaint - Virtual Graffiti - Tag your world with virtual graffiti
Creddon - Tweet for a cause and a sponsor will donate $1 to charity
Art Genius - Discover art with image recognition
eSolidar - Charity shops and online auctions to support great causes