Web rings are linked circles of web sites. The porpuse of rings is to allow more visitors to reach their members quickly and easily.

Visit WebRing and search their directory. Their directory is organized by subject and you can find a ring that suits the subject of your page. WebRing let you create your own web ring too.
Check out my Web Rings Page. Maybe one of them will suit you.
Almost every homepage has a "web rings" page. Check it out when you visit a homepage.