More detail can be found on the Ask.com blog - http://blog.ask.com.
This is damn sad coz Bloglines has been my reader of choice for the last few years..
This is for those who need to export their feeds to elsewhere.
We want to make it as easy as possible to transport your feeds to another RSS aggregator, so below are some simple instructions:
Thanks again to all of our loyal users for their support through the years.
The Ask.com / Bloglines Team