Michael Moore's Homepage:
A wealth of goodies including entire manuals that can be downloaded.

Michael Tierra's Herb Site:
Another wonderful selection of articles and links.

MedHerb:
Paul Bergners, who writes the Medical Herbalism Newsletter, offers a site with links and info on most of the resources available on the web and off.

Herbal Hall:
Another great source and gateway.

Internet Directory for Botany:
A wealth of links about botany and herbs.