The National Christmas Tree Association is a fantastic resource. Just put in your zip code and you will get a list of Christmas tree farms and retail lots in your area. Even better, each listing gives you tons of info such as the tree types the retailer or farm carries, hours of operation, driving directions, and amenities like whether Santa visits or whether they offer cutting and shaking services. They also have extensive info on the different types of trees available, tips on choosing a tree, how to care for your tree, recycling information and links to other recycling sites.