While some celebs took to Twitter during the Oklahoma tornadoes to lend their support and donations to victims, Kim Kardashian was shamelessly plugging her own cosmetics line and others’ to her 17.8M followers. Classy. But Kardashian’s not alone in milking social media for endorsement cash. Others including Ashton Kutcher and Miley Cyrus are regularly sending product and service endorsements out to millions of Twitter followers who may not realize they’re being advertised to in 140 characters or less. And that has the FTC and the Council of Better Business Bureaus concerned, reports the NYT. FTC disclosure guidelines warn against deceptive online advertising practices – could government fines for non-transparent Tweets be on the horizon?