I recently became aware of a newer social bookmarking tool called SearchFox. I've tried it out and it works pretty slick.

What got my attention was that SearchFox Now offers a new machine learning RSS reader in beta that prioritizes "new content from feeds based on your historical reading behavior, as well as data gathered from the SearchFox community as a whole." Since most most RSS readers list feeds only in chronological order, SearchFox offers an advantage by learning what interests you along with other users' interests and rank feeds accordingly. You can toggle this filter on/off.

The SearchFox RSS reader is in beta right now and it's an invite only sort of thing, but you can request one here on the SearchFox blog. Until you get your invite, here's a nifty preview movie.

TechCrunch has a Review and here's a comparison of SearchFox, Feedster, Pluck, Bloglines, Rojo, and NewsGator..

Tags: searchfox, rss, web2.0, online marketing