Free web directories should be an integral part of your online marketing campaign. Part of search engine ranking is determined by the number of links you have to your site from other sites. The more links you have to your site, the better. But it's often hard to get a site to give you a link from their site. We've put together a list of free web directories where you can submit your site. You might consider creating an email account specifically to submit your sites to these web directories rather than your primary email.