Suggest your customers and suppliers communicate with you via email. Incorporate customer and supplier comments into a better web site. Register with the search engines. This service is included when you hire Gridmar Publishing to develop and store your site. The initial listing is important, but so is continual verification of high placement.
Search engines are also dynamic.
Look into banner swaps with similar or related pages. Usually this is free. This can be done electronically or through the customary avenues. Public Relation firms are popping up on the internet that specialize in Web Site promotion. Purchase online advertising.