I got a list of free advertising forums, You can view that here http://radenpayas.com/2009/03/09/lists-of-free-advertising-forums/ But do you think this will effect on our site if we add it in these forums. These forums are like spam (mostly 0 reply threads) filled with links. Don't you think Google is pretty smart to check which site is spam and which is not ? I think submitting our site in these forums are like getting 0 weighted link. The same question i asked with few guys, they said it worth but i like to ask this with DP SEO gurus. What do you think guys ?