Lots of really great API projects have created similar experiences from the hilarious Cursebird to the sporty Twackle. Twitter is contacted regularly by brands interested in sponsoring innovative experiences based on topics of interest.

It turns out the folks over at Federated Media have both the resources and the expertise. So if you're a major brand and you want to sponsor a topic-focused social media experience with Twitter, we suggest Federated Media—they'll fix you up right. Check out their first project in conjunction with Microsoft, Exectweets.com