http://football.picklive.com/
Picklive is played during live televised soccer matches, with scores updated instantaneously. Participants choose three players from the 22 on the field, and compete during the 90 minutes of live play, with the winner decided at the end of the game, meaning winning participants can gloat as soon as the final whistle is blown.
http://www.11kicks.com/Competitions/WCComp
11Kicks, which has offices in Israel and the U.K., and is running a World Cup game in a host of languages, including English, French, Spanish and German. The firm has also recently launched an iPhone app, meaning players can make changes to their squads anytime.
http://en.mcdonalds.fantasy.fifa.com/
http://menmedia.co.uk/manchestereveningnews/sport/football/international/s/1242203_men_world_cup_fantasy_football
http://www.fantasyleague.com/ProWorldCup/Default.aspx