Blogs 'o spam

Sifry's Alerts recently had some interesting stats on the proliferation of blogs. The growth is exciting. Unfortunately, it's not all good:

"There is a dark underbelly to these numbers, however: Part of the growth of new weblogs created each day is due to an increase in spam blogs - fake blogs that are created by robots in order to foster link farms, attempted search engine optimization, or drive traffic through to advertising or affiliate sites."

It's too bad. I'm hoping it doesn't get out of control. Here's a typical example of a spam blog for DirecTv. Should be interesting to see how the problem will be dealt with.