As we reported yesterday, Facebook for a while blocked all j.mp short URLs provided by parent company bit.ly in status and page updates. Asked for more information, Facebook said it was working with bit.ly to resolve the issue, and that more than 70% of j.mp links pointed to spam or "other security issues" at the time the block was imposed. Thanks to our original tipster on the story, William Albano , we've now learned that j.mp links can now again be posted to Facebook walls worldwide.