Reason for keeping two aggregators in sync

I just discovered an excellent reason to use at least two aggregators and to keep your blog lists in sync as much as possible:  when one goes down (as Bloglines just did for a second time this weekend), you have a backup.  At a minimum, you should periodically and frequently export and save the OPML list of your blog subscriptions so that you can import them into another web feed aggregator.  Now, I'm waiting for Bloglines to come back up.

 

-- Jack Krupansky