The Open Gaming Network is a family of wiki-like rules reference websites, created by John Reyst, for various Open Gaming Licensed game systems, or similarly-licensed RPG systems. — The Open Gaming Network currently consists of all of the sites at:
opengamingnetwork.com appears in the published seller files of 1 advertising network. Each row below is that network's own declaration that it is authorised to sell this site's inventory, with the date the relationship first appeared in the record.
Same niche, closest authority score — the competitive set a network would compare opengamingnetwork.com against.