One of the most frequent complaints that we've received on this blog and elsewhere is the lack of end user training material for WSS 3.0 and MOSS 2007. Although there are some companies offering training courses and a book or two focused on the end user, our customers want and deserve to get something directly from us.
The SharePoint End User Training Kit is our offering, and it's available at no cost!
Source : Microsoft SharePoint Products and Technologies Team Blog