pleeker - 7:10 pm on May 19, 2004 (gmt 0) Good luck, and keep trying.
Of course it's difficult to analyze without knowing specifics, but I would echo what Jetgirl said. Don't just aim to be the product leader in your industry; try to be the information leader. Regular newsletters, articles, self-help material -- produce great content, and that will eventually encourage other sites to link to you without you having to go begging. The more links you get, the better you should do. The more new content you add, the more often crawlers should visit your site, and the better you should do. Etc. Etc.
Good luck, and keep trying.