Yes folks, I'm really on a roll here with the preparation for back-to-uni!
Chapter 4 of Herring's the internet and information skills concerns itself with subject gateways. Below are some (hopefully) useful links.
Scottish Virtual Teacher Centre
Geography subject gateway GEsource
As always, please leave a comment if you use any of these links to let me know how useful they were. If you have any other subject gateway links that I don't have, please let me know.