Forbes Top Social Media Campaigns, #11-20

Here's pt. 2 in our look at Forbe's inaugural ranking of the best social media campaigns, starting with #11 — which offered a Whopper of a come-on.

11. Whopper Sacrifice
This Burger King campaign was controversial – ‘What do you love more, your friends or the Whopper?’ Facebook’s app offered free burgers in exchange for ‘unfriending’ 10 people. 234,000 ‘friendships’ were ended before Facebook ‘sacrificed’ the app.

12. Target: "Bullseye Gives"
Target gave Facebook fans $3 million to choose which of 10 charities should receive the most. St. Jude's Children's Hospital won with 26.6% of the votes, and Target donated $797,123. 167,000 fans registered 291,399 votes.

13. Vitaminwater
A Facebook fan page served as this brand's website. It encouraged fans to make their own Glaceau Vitaminwater flavors – with $5000 to the winner.

14. Smirnoff: "Tea Par-tay"
A rap parody music video – with preppy white guys shilling for Smirnoff's Raw Tea drink in 2006 was a viral hit.

15. "The Dark Knight:" Why So Serious?
More than 10 million people in 75 countries participated in this campaign promoting the alternate reality game created by California-based 42 Entertainment to promote the Batman movie. The film became the highest-grossing movie of 2008.

16. Quiksilver: "Dynamite Surfing"
This 2007 surfer clothing video, viewed more than 35 million times, used explosives in a lake. It resulted in a cult following and inspired Discovery Channel's Mythbusters investigation of ‘dynamite surfing.’

17. Cadbury: Gorilla
A gorilla drummer rocks out to Phil Collins…in an iconic campaign that helped Cadbury Schweppes sales rose 7% from 2007-2008.

18. BMW: "1 Series Graffiti Contest"
BMW created an online graffiti contest by asking, "What drives you?" 9,000 drawings of car designs were submitted…and winners won car models.

19. Bing/Farmville

Microsoft's Bing wooed players with Farmville cash to click on sponsored ads and win crops and farm animals. The campaign resulted in 425,000 new fans – equivalent to a 360% jump in less than one day.

20. CareerBuilder: Monk-e-Mail

Users can send primate-themed e-cards via this ongoing promotion. And they're not monkeying around: more than 100 million Monk-e-Mails have been sent to date.