On: Has anyone created an RSS-based recommendation engine yet?

[johnrob]

So, you upload your feed list (OPML) and get other feeds (OMPL) that you might also like?

[altano → johnrob]

Exactly. Even better, your RSS feed reader/aggregator does it for you.

EVEN better yet, your feed reader can assign weights to the feeds based on how often you actually read the content.