Could someone clarify the rule as to whether it is permissive to post links to eBay auctions in "for sale" threads?

I have had a lot of success attracting bidders by doing so. It would seem unnecessarily disruptive to prohibit the posting of eBay links, seeing how difficult it is to find buyers for cars & parts in this niche market already.

If not in the "for sale" section, is there a better place to post links to eBay auctions?

Thank you.