The weirdest thing about the rumor that Kim Kardashian gets paid $10,000 for a Twitter endorsement is that it’s true. (Recent plugs have been for ShoeDazzle.com and CVS.) The biggest player in the pay-to-tweet market is Ad.ly, a social-media advertorial clearinghouse pairing brands with celebs to inject highly personalized advertising into their Twitter streams.
The pay rate for endorsing companies like Old Navy, Toyota, Best Buy, and American Airlines is determined by the size of a celeb’s following and how that group responds to his tweets with shares and retweets.
Source: NY Magazine