254487 Increase Traffic to Site

I am looking to increase North American traffic to my edcational site. I prefer organic marketing in the form of postings to blogs, forums, etc. on other educational based sites. I am open to other methods but robots are not permitted. Bidder may not post on adult sites or anyother non-education related site. Parenting sites are aloud. It is my goal that visitors will join the site, post items and continue to return. I will provide site name within the PMB.