Google announced their Blog Search system last week.

Unfortunately, it is already succumbing to that type of annoying 'use our catalog system instead' type of spam (and sorry, but it is, essentially, a form of spam) that uses adverts and associate information to drive sales by ensuring that their pages appear at the top, just because they've mentioned the search term 3 million times on their home page.

If you want an example, search for 'linux terminal server schools', which I was searching for while looking for a story about linux terminal services in schools for my previous post.