Plaintiffs National Numismatic Certification, LLC, ASA Accugrade, Inc., PCI Coin Grading, inc., Sovereign Entities Grading Service, Inc., Treasure Gallery, Inc. and Centsles, Inc. alleges that Defendants eBay Inc., American Numismatic Association and Professional Numismatists Guild defamed them by developing a "certified" coins policy that only permits the listing of coins on eBay as certified if they were graded by approved grading services. Plaintiff alleges that this policy implies that coins graded by non-approved grading services are counterfeit.