It is just people helping people drive more traffic to their website through a unique ring.
Web rings are a great concept for promoting web sites free of charge.
Participating sites will receive visits from potential surfers who may never have found them without the ring. Your site must contain something about American history - past, present or future. Your site should be attractive yet functional. We presume surfers want to find information, not a page of links or gimmicks. The ring is setup to automatically rearrange itself every 7 days to place lower traffic sites in between higher traffic sites.