Denis's EUROPa Page: The Expanding Unidirectional Ring Of Pages was the inspiration for WebRing.
Ringlink Webring Directory: Directory of independent web rings. Hosted by the Ringlink project.
The Strange Saga of Yahoo and WebRing: Salon.com article on the phenomenon and Yahoo's foray into the scene.
Web Rings as Computer-Mediated Communication: Academic article.
World of Webrings: General information, guides and documentation, tips for ring owners, reviews of hosts and scripts, and a mailing list.