Seems one of the data centers went down. That took the Market Place, is rumored to have knocked 10k users offline, cutoff access to ADITI, and generally borked things.
Rod has been tweeting about it. Rod started tweeting about 11:30 AM, if my math is right, which is several hours after the problem event started. Not surprising that it takes some time for bad news to reach the top.
Several of the ripple problems have been resolved. Its unclear if the Market place slowed, was fixed, and then crashed. But, it is back up. Some say it still isn’t right. But, the Lindens are working on it. Rod was going down to the data center to see what’s up.