I suspect that means that the hints were still too obscure. We have learned that we really need to work on the hints. They shouldn't be as hard to solve as The Da Vinci Code!
Let me think on this. I suspect that there is a way to set it up so that we don't have to constantly check up on participants or worry about someone yanking our chain. And I suspect that if we wrote to lots and lots of webmasters we could find folks who would be interested.
We might be able to make it work if we use the search feature of the Ultimate Sims List to find key words, site names, and links to sites. I'd need to do some coding, though.