This tactic can help you generate the most visitors to your site. Search Yahoo, Google, MSN and the other search engines for each of your important keyword phrases and make a point of attempting to get a link from each page. Oftentimes a direct phone call to site owners or a very tactful email can go a long way. I've even used handwritten letters to attempt to cajole site owners into giving me a link. Use whatever resources you have help persuade - links from other sites you own, money (if you have it), free SEO services, contributions of articles or content, etc.