Similar to what has been reported above, Cook's Illustrated, in an email I received from them recently, offers the following tip on freezing fresh herbs:
Freezing Fresh Herbs
Many recipes call for just a small amount of herbs, which are often sold in large bunches. To keep herbs from going bad, try this method to keep them fresh indefinitely. Chop leftover fresh herbs by hand or in a food processor. Transfer with a spoon into ice cube trays and top with water to cover. Once the cubes are frozen, transfer them to a zipper-lock bag and seal. Store and use when desired in sauces, soups, or stews.