Memeorandum is another site that I hit every day. It's an automated blog search that displays the blog posts that are most popular at any given time, by ordering them by how many other sites are linking in to that post. It then groups other blogs that link in in pseudo conversations around that first listing.
It's a great way to quick snapshot of what's hot on the web at any given time, and to read various viewpoints on that subject.
Right now, Memeorandum is only live in Politics and Tech, but they are looking to expand.
