Undesign - Free design tools and resources for your projects
Creddon - Tweet for a cause and a sponsor will donate $1 to charity
UX Tools - Compare UX design tools side-by-side
Wheelys Dreams - Crowdfunding for making dreams become real
2015 Design Tools - Results from survey of 4,000+ designers on their fave tools.
eSolidar - Charity shops and online auctions to support great causes