Wren - Offset your carbon footprint by saving rainforests

Schoola - Shop secondhand clothes that raise money for schools

Capture - A great free screen capture utility that allows you to capture either a window or the desktop and save it to either a file or the clipboard.

Givalytics - Maximize your social impact: a portfolio approach to giving

Treepoints - Fight climate change and earn rewards

AidSpace - Volunteer management for organisations around the world