A little less than a year ago, Twitter announced that it acquired Posterous, though the companies said that Posterous would remain up and running “without disruption,” some users have now found that they are unable to sign up for new Posterous Spaces accounts.

TechCrunch reported on the finding after receiving a tip. As we’ve confirmed separately, if you try to sign up for a new account, you’re greeted with the following message:

Oh noes! Something went wrong.

There was an error loading the page you requested. Please try again later, or send us an email
at [email protected].

According to TechCrunch’s source, this has been going on for over a week. Here’s what Twitter and Posterous said when they announced the acquisition:

Posterous Spaces will remain up and running without disruption. We’ll give users ample notice if we make any changes to the service. For users who would like to back up their content or move to another service, we’ll share clear instructions for doing so in the coming weeks.

To our knowledge, no notice has been giving of any changes, and as TechCrunch notes, the Posterous URL-shortening service Post.ly is still up and running.

We’ve reached out to Twitter for comment, and will update accordingly.