Ma.gnolia, one of those chi-chi social bookmarking sites like Delicious, has gone down and doesn't look like it's going to get back up any time soon, indicating the hazards of storing data online without a local backup.

This is the message on the site:

"Early on the West-coast morning of Friday, January 30th, Ma.gnolia experienced every web service's worst nightmare: data corruption and loss. For Ma.gnolia, this means that the service is offline and members' bookmarks are unavailable, both through the website itself and the API. As I evaluate recovery options, I can't provide a certain timeline or prognosis as to when or to what degree Ma.gnolia or your bookmarks will return; only that this process will take days, not hours.

"I will of course keep you appraised here and in our Twitter account.

"Most importantly, I apologize to all of you who have made Ma.gnolia a home for your bookmarks and community. I know that many of you rely on Ma.gnolia in your day-to-day work and play to safely host you bookmarks, keeping them available around the clock, and that this is a difficult disruption."