Links:

www.mercycorps.org
www.savethechildren.org.uk
www.fedonepal.org
www.drukasia.com
www.trekking-in-nepal.net
www.tigermountain.com
www.dambar-silver.com
www.geographical.co.uk
www.asiangeo.com
www.categillon.com 

This page is currently being updated, more links coming soon.