- Create quality content (good system + good content, at least good content or good system)
- Never spam!!!
- Add your site to Open Directory (Dmoz.org)
- Add your site to search engines like Google, Yahoo, Live, Gigablast etc...
- Add your site to web 2.0/social bookmarking sites like Delicious, Digg, Facebook etc.
- Add your site to links under related articles on Wikipedia(if any, do not spam!)
- Read forums, join diskussions and add your site to related topics
- Read blogs, post comments with your site