"Google has partnered with five charities for Chrome for Cause. These are The Nature Conservancy, Doctors without Borders, Charity: Water, Room to Read, and Un Techno para mi País. To contribute, all you have to do is download the Chrome for a Cause extension for Chrome and start opening tabs. Google is only running the program from December 15 through to December 19 and it's capped at $1 million so be sure to get moving on this as soon as possible for maximum warm and fuzzy feelings.