Today is Twitter’s 15th birthday. On March 21, 2006, founder Jack Dorsey Tweeted  “just setting up my twttr.”  The journey which started as a text-based platform has evolved into a microblogging site and one of the most used social networks. The internet firm is in the process of developing few conventional features  — Super Follow, shopping, Undo Sends. A sign that Twitter is consistently evolving to stay relevant to the users and competition.

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