We have been skiing in Rovaniemi and Saariselkä and hiking in Karelia, but I did not have the time so far to write reports.
There are many good pages about hiking in Norway, so I have collected only two small day trips that I liked very much, and some links to other pages.
Bike tour: The "Rallarvegen"
along the Oslo-Bergen Railroad Line
Mountains - the Willassen Guide, an excellent private WWW-site
covering all aspects of hiking in Norway