Incoming links to internal pages can improve your rankings for keywords on your internal pages. This unique web directory accepts only deep links.

This site offers rankings and reviews of the top free and paid web directories as well as SEO tips and submission advice. They also offer a high quality / low cost directory submission service.

A list of 7000 general, regional and niche directories. The site also has an internet press section with lists of RSS feeds, social media, press releases sites, as well as podcast and blog directories