American Horticultural Society
This site, for the horticulture connoisseur, provides links to several articles from The American Gardener. Membership in the AHL and a subscription to The American Gardener permit you to order several varieties of seeds free in the month of January. Includes a gardening Q&A. Members are graced with many other privileges, too.
Better Homes and Gardens Online Garden Page
This site offers a garden forum with questions and answers, some great long articles, shorter handy ...