webring
One author sends the 'ring' traffic and expose the ideas that they think are interesting in a way that is more seamless than a "you should read this [link]", and hopefully if that stuff is interesting the other author(s) will reciprocate.
Ray "brisray" Thomas explores a variety of methods you could use to create a webring in his article: Webring Technology. But the basic premise is...
The next and previous pages can use the Referrer HTTP header to find the site someone was visiting and then query a database to find the previous or next page in the webring. "Previous" and "Next" are usually defined as the sites who joined the webring before and after a member.
If a visitor gets to the end of a webring, the ring should start over again, taking a visitor to the first site in the webring.
Note: Some webrings opt to send a visitor to a random page when visiting a previous or next endpoint instead of maintaining the sequential order of the ring. This is an implementation detail that you can consider when building a webring.
