Just a few minutes ago google added web blog search to its array search services. I made extensive searches and found it to have weak algorythm did encounter quite of bit of junk and spam. But google is bound to improve upon the algo of blog search very soon also you wont see a million billion pages when you make a blog search kind of weird as i used to seeing these huge number on the right hand side of the web search page.
I hope google doesn’t separate web blogs from its main web search engine results.
I see great possibilities for google blog search will have to research and see where it lacks and be after google to make them fix it.
Also dont be disappointed if the search term you are looking for didnt reveal the best results remember you are searching for "BLOGS" not websites.
Google blog search http://blogsearch.google.com/
Google blog search FAQ is available here: