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RingWorld is a CGI script for organizing a WebRing to link together sites featuring the same subject. With RingWorld you can also host your users' WebRings, turning your site into a WebRing server and building your own WebRing community. Users can register their site in any WebRing hosted on your server, or register their own WebRing. Users can also modify personal information or cancel their accounts/WebRings using a special form.
Price: $50/$100

SimpleRing is a set of scripts that allow you to run a full featured webring. This set has everything you need to cover all areas of administration and is super easy to setup and run.
Price: Free for Members/$100

A perl script to create a webring without the need to go through one of those annoying free webring services that put ads on your webring pages and have other annoying policies. Since the script is hosted on your server you have complete control.
Price: $55.00