From the site:
"BlogBridge is a blog, feed and RSS aggregator for “info-junkies.” While there are other aggregators out there, BlogBridge is designed for people who are required to follow lots of feeds, not 10 or 20, but 200 or 400. You can’t read that much, so BlogBridge gives you lots of ways to organize, sort through, skim and discover what’s important to you in this avalanche of information."
Download BlogBridge (for Mac or Linux)