The simple hashtag popularized by applications such as Instagram has revived purchasing via social media by aiding visual search and helping content go viral. "[B]rands are realizing the hashtag's potential to be a link that unites messages in an increasingly fractured social-media landscape," writes Kevin Bobowski. Chirpify and American Express have teamed up with Twitter to develop ways that the hashtag can be used for purchasing to take advantage of the feature.

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