Microsoft's releasing the full text of Introducing Microsoft Visual Basic 2005 for Developers for free here. Despite its title, this in an intermediate-level book intended to get programmers in other languages up to speed on VB.NET.
From the site:
Get a focused, first look at the features and capabilities in Microsoft Visual Basic 2005, Visual Studio 2005, and the .NET Framework 2.0. If you currently work with Visual Basic 6, these authors fully understand the adoption and code migration issues you'll encounter. They'll step you through a quick primer on .NET Framework programming, offering guidance for a productive transition. If you already work with .NET, you'll jump directly into what's new, learning how to extend your existing skills. From the innovations in rapid application development, debugging, and deployment, to new data access, desktop, and Web programming capabilities, you get the insights and code walkthroughs you need to be productive right away.