Depends on who describes it

Dare Obasanjo thinks that Dave Sifry is playing fast and loose with blog numbers. I don't know - it's understandable that Dave wants to limit discussion to what he has facts on; it might be nice if he added a few caveats, sure. Dare's biggest beef:

It's now general knowledge that services like MySpace and MSN Spaces have more blogs/users than Technorati tracks overall.

I'd be interested in knowing why Technorati doesn't track those services.