Yeah, it sounds really sleazy, but despite Twitter's best efforts, the site actually does a pretty poor job identifying and shutting down bots and followers-for-hire. Various investigations have found absolutely massive amounts of fake Twitter followers on some of the site's most prominent accounts: Barack Obama, Lady Gaga, Justin Bieber. Even Twitter itself was found to have plenty of fakes. (Shockingly, it appears the one real thing about Kim Kardashian is her Twitter fan base.) Now, this obviously doesn't mean that the president is logging onto creepy Russian websites and paying the requisite hundred bucks, only that for sites looking to use bots to drive traffic, retweeting an Obama edict or a Bieber shout-out is a good way to get some page views. For those who do buy fake followers, there are plenty of features available: Unlike fake Facebook fans, Twitter bots can favorite, retweet, and even reply for an extra fee.