Madden NFL Social: Like the Fan Page for free prizes at launch
FarmVille 2: Grab your free goodies from the game's fan page
SimCity Social: Earn free gifts daily for being a fan
FarmVille: New Boar to unlock when 3 million Like Zynga fan page
FarmVille White Aster crop available to plant for one week only
Zynga giving away 250 Cafe Cash on Cafe World fan page for Mother's Day
FrontierVille: Free Elbow Grease goes a long way
FarmVille Frito Lay Promotion: Help out to receive Frito-Lay Stand, double mastery, & more
FarmVille Cows fan page speaks of "dark days to come"
FrontierVille: Earn a free Apple Tree from the FrontierVille fan page
CityVille: Zynga will release Art Gallery building after 1.5 million 'Likes'
FrontierVille: Earn a free Ox from the FrontierVille fan page
City of Wonder: "Like" a post and get a Forge!
Grocery store bags $10 Facebook coupon due to popularity