If you're a vintage buyer, you can find valuable resources on the VFG website, such as the forums, the VFG blog, and informational databases such as the label resource and fur resource. It's also a wonderful way to find quality vintage sellers who have been vetted by their peers.
If you're an experienced vintage seller or other fashion professional, you may consider applying for membership. Members agree to high standards and best practices, and are considered experts in their field. The benefits of membership include participation in VFG promotions, members-only forums, and association with an organization that stands for trust and integrity in the vintage industry. Members have had pieces placed in museums, featured in fashion magazines, copied by desginers, and walk the red carpet, and include both online and brick-and-mortar sellers, authors, bloggers, costumers, museum curators, stylists, fashion editors, and historians.
Oh, and on a totally unrelated note - if you run into Santa before I do, tell him this would look nice under my tree: