I found a list online, and I didn't see much that would cause any problems.
The big thing they are sticking to is small business loans, and paper tax returns.
Here is the List, first thing click the first section to sort by Closed/Ceased
http://www.cnn.com/interactive/2011/...ex.html?hpt=T2
Make sure to read the descriptions if they will or wont be shut down.
Many congressional staffers have received furlough notices; members of Congress continue to get paid.