The general rules that some of the more authoritarian members like to quote is new members are not permitted links, especially to commercial sites, and especially new members who start their first thread with So... There is no set number of posts before new members can post links but it's usually somewhere around 15-20.

And for the most part we moderators strip these links out. I have notified the moderator for this forum and said I thought the links were appropriate. We'll see what the moderator has to say.