The Internet Arcade - 900+ classic arcade games, no quarters required.
SnakeLogic - The puzzle based snake game
Google Maps Go - Designed to run smoothly on devices with limited memory and on unreliable networks
Gumroad Small Product Lab - Bite-sized lessons to help you launch your product.
Where’s Waldo? - Find him in Google Maps
Productbox - Talk with fellow product managers about how you do stuff.