If you join the MTGOX irc channel its like watching the soviet union collapse.

For those just tuning in: at about 6pm PST Gox shut down their trading engine, but the site was still up.

There's a supposedly internal document floating around that describes Gox's insolvency plan (which many consider a hoax).

Then this joint letter which initially used the word "insolvency" in the title but was edited several minutes later.