The PVAS page is at:

http://www.potomacaudubon.org/

The Maryland Coverts Project Page is now at:

http://www.naturalresources.umd.edu/Covert_Project.html
Formerly, it was at this address.

Gutsy's Appalachian Trail Hike page is at:

www.oocities.org/pvasshep/gutsy.htm