I just published a new article titled "Nested SQL Transactions – Do you really know what Rollback does?".
This month article has nothing to do with Visual Studio. But it is neither unrelated to developers!
This article is about nested transactions into Microsoft SQL Server, and more specifically the rollback of nested transactions.
You can read it from http://www.emoreau.com/Entries/Articles/2011/02/Nested-SQL-Transactions--Do-you-really-know-what-Rollback-does.aspx.