Search visualization provider Groxis just launched Grokker.com powered by Yahoo search -- a simpler way to explore the web. The elevator pitch is hilarious and they started some blogs.
They have had an interface for web browsing for some time now (Firefox users need to install a Java plugin to use it), and this seems optimized for speed. The Yahoo deal makes this a useful tool, congrats to RJ and team -- John Markoff has more.
Just for fun, search for the name of your favorite blogger to see how they are clustered.