Webwork - 12:53 pm on Jun 29, 2011 (gmt 0)
If your question is really about selling "a domain" then you needn't discuss PR, links or anything other than the domain name itself. When you first posted you specifically mentioned the "site's" PR. Domains don't have PR. So it appears you think the value is in the "site attributes".
There are 100s of places to sell domains and sites, but most sites and domains don't sell, or they sell for a trifle, because they're junk and market if flooded with junk. If Sedo, which lists millions of domains, sells 1% of their inventory in a year they consider that a success - and no wonder why: they don't bear the costs of the inventory. Any store that only turns over 1% of its inventory in a year quickly would go bankrupt.
Good domains sell themselves. You can list them all over the place but that won't sell the site/domain.
To find places search for "sell domain", "domain aftermarket", "domain forum", "websites for sale", "sell website", etc. You will, as I've stated, find 100s of places to sell, but as I've stated it's a "What else you got?" world. You appear to think the value isn't in the domain but in the domain associated PR so find places where people buy sites with PR, traffic from domains that have links, etc. - NOT JUST DOMAINS.