MetaFilter is currently offline. We're working on the problem and will update here when we have more info.
Update (10:21PM Pacific): The database server is throwing serious errors, and has a failing hard drive. We're in the process of restoring from backups from about 8:40PM on a backup server to see if we can get things running there while the database server is being fixed.
(11:57PM): The database server has had its hard drive replaced, and we've restored from backups on a staging server successfully, but lost about an hour and a half worth of data before the drive died. We're now trying to see if we can bring the database server back online and the site soon after.
(12:57AM): The site is back, restored to 8:40PM Pacific. Thanks for your patience.
(1:24AM): Offline again until we work out some bugs.
(4:07AM): Site is back, restored to 7:40PM and running well again.