http://www.apress.com/free/index.html
Has:
  • Programming VB .NET: A Guide For Experienced Programmers
  • COM and .NET Interoperability
  • Dissecting a C# Application: Inside SharpDevelop

The download asks for an email but this can be left blank.

I've have also seen Wrox's Begining VB.NET and Databases but can't seem to find a link for it at the moment.