Sawbuck Gamer, the AV Club's bi-weekly collection of cheap or free games, mostly for browsers and iPhones. It's where I found Canabalt (which I still <3) and there are a few others I've tried which are neat. Dig through the articles and you'll probably find something fun and unusual.
The Black Friday sales were on Full House Poker, Marvel vs. Capcom 2, and Warhammer 40,000 Kill Team, as well as the Games on Demand version of Fallout 3. All stuff I either already have or don't want - hopefully that's the same for you.