There are two questions I'd like Ask.com to answer: What will happen to the source code? and What will happen to the archive of RSS items?
Ideally, Ask.com would open source Bloglines and get the item data over to archive.org. We never deleted anything, so the item archive is around 11TB and has blog posts going back to 2003. I bet quite a bit of that data doesn't exist anywhere else. Although Sturgeon's Law applies, there are some gems in that data. I took a look once and found some interesting blog posts from the 2004 election cycle and Hurricane Katrina.
I seriously doubt that will happen though. Building an archival tool for the podserver/itemdbs would require more dev work, and there are the hardware costs of reliably storing 11TB.