List Of Collectors

Being cautious is very important. I'm not asking for a ton of information about everybody and their collection, just email and the coins they are interested in. Any ideas?

Don't let them put me on that list lol

Not sure but I think there used to be a list of the top collectors in the back of the Red Book but has been removed on the later editions. I'd go look at mine but to much trouble since it only listed the top few hundred.
If you really think of what your asking, it's not really possible. Considering there are over 300,000,000 people in the USA and no one really has any idea of how many collect coins. Might be as many as 10% which would be many millions. And that list would change almost hourly. Every few minutes someone, somewhere starts collecting coins. This hobby is sort of like an disease where it keeps on spreading. Today you may not have a coin collector near you and tomorrow all your freinds, nieghbors, relatives may start.