Twitter has acquired the San Francisco-based blogging platform Posterous. While this appears to be a talent acquisition, current Posterous members are being encouraged to back up their content.

Posterous is a simple publishing platform — similar to Tumblr — that lets you post things online quickly through email and distribute content to other platforms.

Twitter’s announcement focused on the talent and reassured the community that Posterous Spaces will remain up and running without disruption. However, the company may have hinted toward something more and added, “We’ll give users ample notice if we make any changes to the service.”

Many tech blogs are taking that to mean that we’ll likely see the service being shut off after a grace period. Otherwise, Twitter wouldn’t have needed to provide you with instructions on how to back up or move your content to another service. For anyone interested, these tips will be available in the coming weeks.

Domain partner, eNom, will take over custom domain accounts purchased through Posterous. You will receive an email within the next few days with instructions on how to access your new domain account.

While this doesn’t necessarily mean game over for Posterous, it’s never a bad idea to know how to back up your content. This is a good reminder for anyone with a blog to back up regularly and make sure your work is safe.

[Via: AllTwitter, Image credit: Akidos]