New member question about listing on multiple sites

Here's a question from a two-month old domainer and new member to namepros:

I've seen a fair amount of discussion about listing domains on multiple sites. Do you have to register the domain at each site in order to list it for sale? I didn't think a domain could be listed with more than one registrar.

Thanks, and I've sure appreciated all the great tips and information on this site.

New member question about listing on multiple sites