Directory Submissions is one of the most important ways to build incoming links to a website from a related page. This can not only get your website a higher Google Page rank but also improve the SERP's. There are a lot website which offer automatic directory submissions but experienced SEO's will tell you - nothing works as good as manual directory submission.

Seobilly.com provides free articles for websites and a ready to run free article directory solution based on a modified phpld script to start your own article directory.