I get a lot of emails asking me to identify or otherwise evaluate various pieces of Arts and Crafts antique furniture - something I am completely unqualified to do. However, now that I've discovered the Chicago Antiques Guide, I have somewhere to turn when I get these requests.
The Guide is a weblog devoted to identifying and valuing antiques (specifically those in and around Chicago, IL). It's a great place to get advice about mystery items that have floated down the generations of your family, and an even better way to learn about all sorts of makers' stamps and other identifying marks on furniture, ceramics, metalwork, glass and textiles.
The site also includes an extensive resources list of antique buying / pricing / selling / repairing agents throughout the Chicago area.