Kim Kardashian, from the reality TV show Keeping Up With The Kardashians, has over three million followers on Twitter. Her sister, Khloe, has tweeted about their new line of clothes for bebe more times than I can count. And Kourtney has mentioned her interview with Jimmy Kimmel three times in a row.

Social media marketing seems to be the Kardashian sisters’ full-time job. Kim, Khloe, and Kourtney use their Twitter and blog accounts as a team to market both themselves and the products they use.

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