Here we have collected some good links::
Inlandsbanan AB
Inlandsbanans vänner
Communities along the Inlandsbanan:
Other links:
Naturens Bästa
Hike and bike in Jämtland Härjedalen
Banverkets Bicyclemap (take the bike with you on the train)
Treffpunkt Schweden
Svenska Turistföreningen (Hiking and Youth Hostels)
More links are comming, the page is under construction