Ensembli demos simple, useful RSS aggregator by Rafe Needleman, Webware (Mar 2)
Ensembli is a new RSS reader - tracks the topics you tell it you're interested in. "It then watches what you c lick on and fetches stories based both on those implied interests and what you've said you want to see. ... It's really simple, and I believe it could be a useful site for a person who's just looking to see what's new in a field they care a bit about. "