Two of the Best Genealogy Blogs Going

The Demanding Genealogist by Barbara J. Mathews of Connecticut (methodology) -- for instance, "Playing Dominos: The Illumination of the Non-Authoritative."

Deb's Delvings by Debbie Parker Wayne of Texas (specializing in law and genetics) -- for instance, "Research, Proof Standards, and DNA Testing" -- also her posts on these topics on the Transitional Genealogists Forum.

Both blogs are by Certified Genealogists, but the reason they're both high up on my home page is that I never read them without learning something.