My point is that from my understanding 1 way links to my site would have a higher value than reciprocal links. I don't really consider it selling links. I have a site which provides a service which people pay for, I give a link to their site as part of that service. I don't consider that they are paying me for the link. It would not be worth much from a seo perspective. I don't have any objection to linking to them....I am simply trying to work out if i can benefit my site by linking to them in a better way than a straight reciprocal link.