LibWorm is intended to be a search engine, a professional development tool, and a current awareness tool for people who work in libraries or care about libraries.
LibWorm collects updates from about 1400 RSS feeds (and growing). The contents of these feeds are then available for searching, and search results can themselves be output as an RSS feed that the user can subscribe to either in his/her favourite aggregator or in LibWorm’s built-in aggregator.
They’ve aggregated my blog, which is kind of neat. So far I’m the only hit if you search for makeouts.