• An earlier version of this post said that Groupon dropped their sponsorship of “Celebrity Apprentice.” That’s half-true. The company will no longer allow their ads to show up on the Apprentice Web site. However, they never actively sponsored them, but instead showed up on the site thanks to Google and other ad networks. So, while ThinkProgress (30,000 followers), did throw the tweet to the company (35,000 followers), and Groupon did agree to it, it’s something of a misnomer. They agreed to “dump Trump” … if Trump happens to be in the same room as Groupon. But he isn’t right now. Still, there are examples of this technique being used against sponsors, including:

• left A 2009 YouTube clip put brand logos on Glenn Beck’s head as he said offensive things. The clip was so effective that Beck lost most of his advertisers.
• right Last week, Wonkette removed a story that mocked Trig Palin’s birthday after an online campaign went after the site’s advertisers; many dropped their ads. source

(via BrooklynMutt; photo originally by Gage Skidmore)