Learn more about collecting, conserving, and sharing heirloom vegetable seeds from Seed Savers Exchange. This non-profit organization, founded in 1975, has a network of members committed to saving our garden heritage. The Web site offers information about saving heirlooms, a resource list, varieties that they offer for sale, and membership information.
From the hundreds of heirloom tomato varieties available, author Carolyn J. Male has selected the consistently top-performing varieties in 100 Heirloom Tomatoes for the American Garden (Workman Publishing, 1999; $17.95). Each variety is described in detail and has a full-page color photo. Male also provides information on saving tomato seeds and creating a new variety, as well as down-to-earth information on starting and growing tomatoes.