Shame to see another web 2.0 service wipped away by techincal problems. Here what you find on the Magnolia website:
Unfortunately, database file recovery has been unsuccessful and I won't be able to recover members' bookmarks from the Ma.gnolia database. This means that the public bookmark recovery tools are the only source for recovering your bookmark collections.
If you are interested in hearing more about what happened, the history of Ma.gnolia in general, and future prospects, you can watch the latest Citizen Garden podcast below, which was recorded last week. As I mention in this podcast, I am working on relaunching Ma.gnolia as a private service on a more robust infrastructure in the coming months. I'll update this page and the twitter account with those and any other developments.
Let's hope delicious isn't going to mess it up :)