This is a nice site about Scandinavian moutains:
http://www.tilltopps.com/index.php?eng=1
The site has a lot of information about Jotunheimen in particular. This is the highest mountain area of Norway, and I can really recommend it for hiking and climbing.
Click the link "JOTUNHEIMEN" on the left, and you'll find descriptions of different routes in Jotunheimen.