You can (and people often do) post domains for sale in the Related Offers & Request forum, however you should note (as if it weren't obvious) that this site isn't primarily attracting domain buyers. Neither is ebay, and I've heard that great domains and afternic, while their purpose is only buy/sell domains, aren't always the best places. Not sure about ebay.
Part of the problem might be how the sites are organized (afternic, etc.). When I've gone there looking for domains, if it isn't on the first page or so, well, then I miss it.
Originally posted by Try the "Related Offers and Requests" forum of WHT. There is also:-
1. The "Website For Sale - Purchase - Barter - Trade" forum at GeekVillage
2. The "Domain Listings" forum in the Sitepoint Marketplace section of the SitePoint Forums
(the forum will only appear after you've registered and logged in)
3. The "Domain Showcase" forum at NWForum
perhaps also consider placing a one page site listing the site for sale, writing domain for sale somewhere in the whois.
also consider writing personalised emails to people who you would consider interested parties.
you really have to market a domain name vey hard, and an email to prospective purchasers is quite often one of the more successful ways of selling a domain name, well in my personal experience it has proven to be.
I tried selling a domain name by emailing prospective buyers and somehow my webhost found out and warned me if I did it again my account would be terminated.
I emailed about 5 of the most likely prospective purchasers. I emailed each one individually and addressed them by their name, I would hardly consider that spam. I am not in the business of domain speculating and have only sold 2 domain names this way. Most of the time, people look at the whois and contact me. And if I had a domain name that I didnt want I would rather let it expire than try to sell it.