Protonet - Private cloud servers - Slack meets Dropbox in a box
Drawasaurus - Drawasaurus is an online drawing & guessing game you can play with friends or strangers.
Duple - Create your own private cloud at home
skribbl - Word guessing based on drawing.
Convox - A year ago, I described a strategy we use to build Convox: Integration over Invention. This philosophy leads us to build a platform that integrates existing cloud services instead of building custom software.
gartic.io - Draw, guess, and win!