Last year, dating app OKCupid removed the ability for its users to view who had visited their profiles, but a developer this week revealed that visitor data had still been available via OKCupid's Visitor API. In a blog post, Zack Whipkey detailed how he was able to access detailed user information.
The Gnip Audience API now features Twitter aggregate user age information. The Gnip Audience API includes nearly one dozen demographic models including gender, interests, TV genre, TV show, language, etc. User age is the newest addition to the set of Gnip Audience API demographic models.