We think it’s important that you own the content you create online, which is why we make it simple to import or export all your data — you wrote it it, it’s yours, and you can take it where you’d like. If you want to become a part of the WordPress.com community but have been posting on Tumblr, Blogger, LiveJournal, Posterous, or other services, you can move your whole oeuvre over with a few clicks. (It’s just as easy to leave, but we’d miss you!)

This also means that if you’re blogging with a service that’s phasing out, as Posterous is doing on April 30, it’s easy to keep your site going by setting up a WordPress.com account and importing all your content. (Check out the Posterous blog announcement for more details on the change.)

We know it can be rough leaving a tool that you know and…