I have already posted a few times on obsolete API calls in .NET 2.0, but I stumbled upon another list that is easier to read. In the past you had to kind of dig through a compiled help file and it wasn't really convenient to look through.
Obsolete API List: By Namespace
Obsolete API List: By Assembly
Read the complete post at http://www.dotnettipoftheday.com/blog.aspx?id=250