Subway Book Review

Five years ago, Uli Beutter Cohen started @SubwayBookReview, an Instagram account featuring photos of straphangers with their current reads. It now counts some 114,000 followers.

TSA social media

Rolling Stone recently named the TSA with its taxidermy alligator head Instagrams and collection of confiscated hatchets the fourth-best Instagram account in the world. TSA's Bob Burns said he believes the account is gradually changing the way passengers think of the TSA and the tasks it performs.

Tags and the City

A European duo reimagined how the New York City subway system is mapped out in a project they call "Tags and the City," which renames subway stations after the most popular Instagram hashtags in the area.