Twitter Inc. will start rolling out advertising to users Tuesday, the four-year-old company's first significant attempt to turn its microblogging service into a profitable business.
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Twitter to roll out advertising
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HBO launches new social media site
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Twitter acquires Whisper Systems
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PR NewsChannel announces first winners of 'retweet to win' Twitter contest
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Twitter goes over capacity:
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Boynton Beach launches social media campaign
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RUPERT Murdoch joins Twitter
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Twitter launches new Japanese mobile platform
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TweetDeck bought by Twitter
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PG Tips launches new social media campaign
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Facebook launches behavioural advertising
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JBWere expecting ad market to grow
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Bill Gates finally joins Twitter
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TweetDeck launches Android app
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Rim releases beta version of Twitter for BlackBerry 1.1
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Facebook to begin charging businesses to target users with offers
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Obama tweets for the first time