Cool tutorial videos from Microsoft
The asp.net website now has a set of "How do I" videos, including ASP.NET, AJAX, SQL Server 2005 Express, and intros to new technologies such as LINQ.
I really like how they start with the basics, such as: #1 What is a database?
I think these are cool not only for the content, but for the format: bite-size chunks of self-learning.
Taking it to the next level, why not incorporate this style of tutorial directly into your application? That would be much nicer than reading the typical user manual.
Good stuff.