This relevancy ranking is what I think will be the secret sauce to Googles blog search success.

The 800 pound gorilla just entered the blogosphere, with Google launching its blog search.

I think Google is going to blow them out of the water. So they need to dive into some niche and develop something other than just blog search.

The 800-pound gorilla just entered the blogosphere, ... the secret sauce to Google's blog-search success.

Google is taking a lot of hits to its image as a benevolent spreader of new and better technology. In some ways, its success has made people scrutinize what it does much more closely.

Taking a close look at all technical options is the right thing for them (AOL and MSN) to be doing.

Despite the struggles of its ISP arm, AOL.com is well positioned because of the number of users of AIM (AOL's Instant Messaging) and the strength of its new online mail offering.

When they announced it, it seemed to underscore that they were the only company on the Internet with the vision, ambition and technology to do this. It seemed to only enhance Google's reputation.

Look for Yahoo and MSN to launch similar vertical searchs for blogs, which will tighten the noose even more for these small players.