I would like to expand on this point just a little because there is obviously confusion with some members about these links and I have been questioned about it.

I have seen a lot of posts in which the auction number of eBay auctions is given and members take this as being acceptable according to the community policies. The policy does not say that "live links" are not allowed but specifically uses the word "links". An auction number is a link of sorts because it is direct reference to the auction that is mentioned. With that in mind, auction numbers are also prohibited by the policies.