So far as I know, they do not. However, I have found a few that are relevant and well informed from SQL Server Central and Tech Republic. TR is what I used when I was learning networking and SQL Server before I got my first full-time IT position.
Catadmin - MCDBA, MCSA
"No, no. Yes. No, I tried that. Yes, both ways. No, I don't know. No again. Are there any more questions?"
-- Xena, "Been There, Done That"