Christine, of the AOL Postmaster Team tells us that:

Beginning on September 2, 2008, AOL will remove the option to create non-ARF FBLs.  We will also convert all existing non-ARF loops to ARF loops. 

They have offered the option to have an ARF FBL for a while now. If you’ve been using that option then you have nothing to worry about, but if you have a very longstanding FBL at AOL then you should alert your programming teams to make sure the conversion gets done before 9/2.

And be thankful that they’re giving more than two months notice to get that worked out.