Yesterday afternoon, Twitter announced that they had acquired blogging platform Posterous, and by all indications, it was mostly for the talent. If you're a Posterous user, this means that your Posterous blog, called Posterous Spaces, is in limbo. Neither company has said there are any plans to shutter Posterous, and Posterous says nothing's changing right now, but there's no reason to wait for someone else when you can take control of your own data. Here's how. More »