Though specifically geared toward developers at ISVs*, the newly updated MSDev.com site has great content useful for any developer and is worth checking out.
From the ISV Developer Community blog announcement:
You will find web seminars, virtual events, live events on .NET Framework, business development, cloud computing, Exchange, Expression, high performance computing, Hyper-V, Internet Explorer, IIS, Dynamics, Office System, VSTO, SharePoint, Next Web, Web UI, Silverlight, SQL Server, Azure, Windows, Visual Studio, and much more.
You'll find unfettered, friction free access to rich media learning content for Microsoft-based solution developers and non-Microsoft based developers. In additon, the site provides developer training focused on value added partners (VAPs).
The phrase “friction free” is key, there’s no need to log in to view resources (though you can if you wish) – just easy access to the content you need.
Start with a search and take a look.
* Independent Software Vendors