Geology and links
Iceland pictures, sagas, history...
German site about Iceland (check: Hintergründiges)
Cycling in Iceland
Icelandic mountain bike club, a must read for anybody planning a bicycle trip to Iceland:
Hollandic site with plenty of informations on cycling in Iceland, links, route descriptions...
Cycling more general:
Buy quality custom bikes or build by yourself. Dave Yates's website
All you need to know about S & S links (make your bike foldable