Disclaimer: Only "Americans" can get free stuff.
Ubisoft have decided to release three of their older games for free, albeit with a few adverts tacked on for good monetary measure. Get them via these games via these Gamershell links: Far Cry, Prince Of Persia: Sands of Time, and Rayman: Raving Rabbids. You also need a free Ubi.com account to get the buggers working. RPS recommends both Far Cry and Sands Of Time, but we're a little less enthusiastic about the mouse-spasming mini-games of the Rabbids.
A freed game, yesterday.
Gosh, PC publishers have realised that they can generate good will (and a meager ad revenue) by giving away the old games they no longer have any use for, instead of carefully ignoring them and making loud noises to distract us from their existence. Hurrah for the PC's infinite back-catalogue.