Allow good ventilation. They should dry in two to three days. It is the oil in herbs that gives herbs their aroma and flavor. Herbs have varying degrees of hardiness. But most are not resistant to frost.
Many gardeners plant their herbs against a house or garage wall, which extends the season.
Index A listing of more than 800 plants and herbs. Herbs A to Z An alphabetical listing. A great 22 page guide to herb growing. Herbal Gardens in the garden, in the home, and crafts. Linda's Garden A really nice site, and has links to the medicinal uses of herbs.