You might have more luck if you bundle your marketing package to include all forms of media, not just the web. Set up your domain to carry that message clearly and with competitive terms and do like everyone else: promote.

As for selling on this or any other similar forum, well, you're trying to sell apples to an orchard owner. We're fellow members. You may be in a good position to collaborate. Perhaps offer to team up with your peers on a joint project of some sort. Collaboration is a great way to get your name out there.