Feeds on Feeds, a PHP / Magpie-based RSS aggregator you can run on your own server. Nicely interleaves recent posts from multiple sites chronologically. 10-minute install. Not gorgeous, but customizable. Recently implemented this for a far-flung group who wanted an easy way to keep up on each other’s blogs, and it was an instant hit – real-time group mash-up.
Music: Mott The Hoople :: Sea Diver