Okay everyone, let's calm down. Currently making the rounds on the Internet is that Twitter is about to launch a Foursquare-killer, Twitter Places . The only problem? They actually launched it about five months ago . They wrote about it, we covered it , so did just about everyone else on the web. That said, there is one potentially new element of Places that we haven't noticed before: the ability to claim a place. We're not entirely sure how new this is, and have reached out to Twitter about it. But what's interesting is that it appears that Twitter's headquarters is the only venue that has been claimed so far (by @twitter, naturally). And looking over the site, I can't find a way to claim any other venue. Here's the TechCrunch headquarters , for example, unclaimed.