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"Twitter is rolling out \"pinned tweets\" to a select group of high-profile users for free. The feature allows a limited number of politicians, musicians, and other celebrities to pin a tweet to the top of their stream. Paying customers will also have access to this feature.\nA \"pinned tweet\" will not be constrained to time limits. It will be labeled as \"promoted\" at the top of a user's profile and is always displayed as shown below:\n\nThe Twitter pinned tweet feature is located inside a user's analytics page, making for easy use of the system. It will only show on the browser version of Twitter (not on the Twitter app or TweetDeck).\nAlthough the feature is being rolled out for free now, it has actually been available for a year through the Twitter partnership system.\n\nIn 2011, Twitter provided brands B2B promotional tweets to drive awareness for their businesses. Companies including General Electric and Dell had the ability to list a tweet at the top of their brand pages."^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2014/04/04/free-pinned-tweets-select-accounts/>