Tanglet - Tanglet is a single player word finding game based on Boggle.
RetailMenot - The RetailMeNot mobile app allows you to find deals on the go for both online shopping and in store shopping.
Webfeud - Two players play in any game of Webfeud.
Slickdeals.net - Slickdeals: The Best Deals, Coupons & Discounts on everything
Lexica - An open source word-search game.
Honey - Honey is a browser extension that automatically finds and applies coupon codes at checkout with a single click.