The top ten MS blogs were listed in Redmond magazine and two were SQL Server guys. I do get quite a few things from Matt Stephens and I can see him as #2, but Tom Rizzo as #5? I guess he blogs about as much as most others, but he posts pretty rarely from my perspective, even more rare than I here.
Steve Jones is the editor of SQLServerCentral.com and visits a wide variety of data related topics in his daily editorial. Steve has spent years working as a DBA and general purpose Windows administrator, primarily working with SQL Server since it was ported from Sybase in 1990. You can follow Steve on Twitter at twitter.com/way0utwest