3 links
Kathmandu Environmental Education Project
keepnepal.org
A non governmental organization promoting "minimum impact trekking", to minimize environmental damage caused by eco-tourism. Contains a mission statement, news, history, programs, …
The Himalayan Explorers Club
hec.org
Provides information and specialized services for trekkers in Nepal. Contains a profile, news, services overview, publications, FAQs and links to other sites of interest.
Treknepal.org
treknepal.org
Charity offering interactive CD-based guide to trekking in Nepal. Offers around 1000 original images, 14 detailed treks.