.net and/or internet coding skillz

asp is the precursor to asp.net (.aspx)

one key difference between asp and asp.net is that the latter posts the form to itself making it easier to code (generally speaking)

asp.Net also comes with a large number of controls like the datagrid etc making binding data and building forms pretty simple ... I've not done much in 2 but have built a fair few apps in 1.1 - you used to be able to download MS WebMatrix for development purposes (if needed)

.Net 3.5 is quite commonplace thesedays ... eg PowerPivot in XL2010 requires 3.5 ... that said I still run a load of old sites/apps on 1.1 without any issues

CC, you should find you can pick up the basics of either pretty quickly...

edit: in terms of sites - I've found 4GuysFromRolla.com very helpful in the past