Facebook code hints that hashtags could be coming to the service

References to hashtags in Facebook’s code suggest the social network could be working on bringing the feature — popular on Twitter, Instagram and Tumblr — to its own platform.

Developer Tom Waddington from Cut Out + Keep, who has discovered a number of unreleased Facebook features in the past, today pointed us to a mention of the word “hashtag” in Facebook’s Javascript SDK. He says this likely for an XFBML hashtag plugin, similar to the hashtag tracking widget Twitter offers developers and publishers.


Another mention is in the live source code for Facebook.com.

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