Facebook stopped working suddenly...?

[Peaceful75]

Is anyone else experiencing this? Since yesterday, my Facebook gives me "unable to retrieve data" and "internal error/500". My X is not rooted, nor have I installed anything suspect. I tried uninstalling the Facebook app, pulled my battery, rebooted the phone, reinstalled it, and it still doesn't work. Subsequently, my Market errored out as well. I'm on Verizon, my service is fine, and my web and email seem to be working fine. Does anyone have any advice here??

Thanks!
Irene