Blogs
The blogs featured here give you the personal perspective of industry experts on new developments in database and data access technology.
Data Platform Development Team Blogs
Data Programmability team blog
The team blog for Data Programmability discussing data access topics in general.
SQL Protocols team blog
Discussions related to Microsoft’s SQL Server Protocols—Netlibs, TDS and (new for SQL 2005) SOAP. Topics include connections and SQL connectivity.
XML team blog
Covers XQuery, XPath, SQLXML, XML Editor, XSLT, XSD, XLinq (LINQ to XML), and more XML goodness.
ADO.NET team blog
ADO.NET and System.Data namepace, posts on current and future releases including info on ADO.NET Entity Framework, EDM, LINQ to Entities, etc.
Microsoft SQL Server Native Client team blog
Team blog for native data access APIs—ODBC and OLE DB—for SQL Server 2005 and later versions.
Data Platform Development Team - Individual Blogs
Andrew Conrad—ADO.net, O/R, and generally invaluable minutiae
Anton Lapounov
brianbec’s WebLog
Carl Perry
Danny Simmons
Eric White’s Blog
Erik Meijer 
Marcelo’s WebLog
Mark Ashton’s WebLog
Sushil’s WebLog Random ADO.Net Discussion
Tim Mallalieu—random musings on data, models, services
Tommy Williams
Recommended Blogs about Data Access/Programming
Andres Aguiar’s Weblog
Ayende Rahien’s blog
Bill’s House O Insomnia
Bob Beauchemin’s Blog
Daniel Cazzulino
David Hayden
Dino Esposito’s WebLog
Erwyn Van Der Meer
Florin Lazar’s WebLog
Frans Bouma’s blog
Jackie Goldstein’s Weblog
Julie Lerman’s Blog
Kimberly L. Tripp
Kingsley Idehen’s Blog Data Space
Niels SQL Server Blog
Panopticon Central
Sahil Malik—blah.winsmarts.com
SQLJunkies
SQL Server 2005: CLR Integration
The ADO Guy
Visual Studio Data Team’s WebLog
Wallace B. McClure
William (Bill) Vaughn’s Musings
Yasser Shohoud