Which free blog services are NOT blocked in China right now?

So back when I was living in China in the dark ages (2002-2004) I migrated my blog from Blogspot to Xanga, because at the time Blogspot was blocked and Xanga was not. Well since I've moved back to the US, I don't always know what's going on with the Chinese net. Well apparently things have flipped around and Xanga is now blocked.

I heard Blogspot has been unblocked, but it seems inconsistent. Can anyone recommend a good free blog-hosting service to move to that Chinese can still read? Part of me thinks it's hopeless though, as the China Net Nanny's changing whims will likely stricke whatever site I move to.

Any advice would be appreciated. thanks.