Open Peeps - A hand-drawn illustration library.
GamerLink - A modern way to find and connect with other gamers
Control Illustrations - 108 free flat illustrations with customizable characters
Steam Chat - Steam Chat is a chatting app for Steam users that enables them to chat through their cell phones and get updated with what is happening.
DrawKit - MIT licensed SVG illustrations, in 2 styles
Plink - Social & Matchmaking platform for gamers.