I saw a WordPress plugin that allows a header to be added as a default to all posts. I was wondering if I should take advantage of this as a place to sell text links. Would this be a good idea? Anyone who reads the article would see the link. Given than my permanent footer links are $15, would $100 or $10/month be a fair asking price? It may seem a little steep, but there is at least one article every other day. That's at least 175 backlinks per year. I'm definitely not advertising, I just curious whether this would be a good idea.