Twitter not only wants to know what you're doing it wants to know where you are. The micro-blogging service announced on December 23 that it has purchased Mixer Labs, a California-based startup that builds location-tracking tools.
"We want to know What's happening?, and more precisely, Where is it happening?" Twitter co-founder Evan Williams said in a blog post. "As a dramatic example, twittering "Earthquake!" alone is not as informative as "Earthquake!" coupled with your current location," Williams said.
"When current location is added to tweets, new and valuable services emerge - everything from breaking news to finding friends or local businesses can be dramatically enhanced," he added. Mixer Labs is the creator of GeoAPI, which helps software developers build geolocation-aware applications. San Francisco-based Twitter has won tens of millions of users since the service that allows people to pepper one another with 140-character-or-less messages launched in August 2006.