Budweiser, which just launched a Twitter feed, is asking people to tweet in names for its baby Clydesdale. Pepsi's "Crash The Super Bowl," which asks people to vote on which user-created ad they want to see on game day. Plus, Pepsi's half time ads will use hundreds of fan pictures. (Read More: Twitter Ups Its Game in Super Bowl Ads.)
Pizza Hut is asking fans to submit a video of themselves. And a number of brands are giving fans a voice in which ad will run: the goal is to get consumers engaging with an ad long before it runs, and ideally, to share it with their friends, which is the most valuable type of free advertising.
Coke is debuting a campaign in which fans can vote on the ad's outcome—one of three groups of thirsty travelers is rushing through the desert to reach the soda. Audi is letting viewers which of three options will make the game.
(Read More: Friday Night Lights' Peter Berg on Directing Super Bowl Ad.)
And as more marketers release ads early, some are already cashing in, long before game day. Mercedes Benz' ads featuring model Kate Upton is the most popular ad on YouTube so far, with 5.5 million views. Toyota's game day teaser, "I Wish" has the second-most hits, more than three million so far. And yet another automaker is in the number three spot, "Audi," with its "Prom teaser ad," which has about two million views
—By CNBC's Julia Boorstin; Follow her on Twitter: