If what they offer fits your schedule you might want to check them out. Better camera stores usually have the latest information on equipment and film, if you drop in when they aren't busy you can get your questions answered. Camera stores and Photo Labs are a good resource for the beginner, and if you build a good relationship with them they can afford to be more helpful. Don't forget to buy something, after all they're giving the advice for free. Commercial Photography Workshops are one of the best ways to learn photography skills, techniques and a perspective on aesthetics.
Customer satisfaction is important and instructors can offer a wide variety of classes.
Workshop instructors usually have years of professional, creative and teaching experience for their students to draw from. Time commitment is usually one or two days including photo-critique sessions, and PhotoTreks offers unlimited support to past and present workshop members.