I haven't tried this one yet, but it looks like it might be a more advanced alternative to my present favorite RSS dashboard, Netvibes — Howard
“The FeedBooster is a free, advanced web-based feed reader that offers a new way of discovering relevant and timely information from the wealth of RSS news, blogs and business feeds. Based on Q-Sensei's powerful search and indexing technology, FeedBooster helps you stay on top of your favorite feeds and get the most out of them.
Very special to FeedBooster is that it provides you with more than just a list of feed items. Every single feed imported into FeedBooster is pre-processed in a way that makes it easier to search, browse and explore. FeedBooster is a dynamic knowledge and productivity tool to quickly mine for personally-relevant information that is important to you. Powered by Q-Sensei's unique multi-dimensional search capabilities, FeedBooster presents the available content of feeds in an organized, dynamic and clickable index to hone in quickly on the right sets of news. FeedBooster also provides a fully-customizable dashboard to best suit your feed-reading and information discovery needs”