Erratum: Getting The Numbers Right

This is to make the correction official. From Walt Crawford himself --

I actually started studying liblogs in 2005 (and before then, but not systematically). I think the number's a little misleading: Of the 607 blogs studied, only 104 started in 2007 and 144 in 2006. More (160) started in 2005, and another 199 started 2004 or earlier.

Any deductions? Go share and comment!