The reciprocal links directory designed to help webmasters build their links, i.e. find link partners, exchange links and thus to increase their website page rank and traffic.
Page Rank Checker is a completely free online tool that enables to check Google page rank of your website pages easily, as well as to display your Google PageRank on your web pages by installing their PR icon tool.
SelfPromotion.com - "do it yourself" (DIY) website promotion resource that explains how to submit websites to search engines like Google, Yahoo, etc. And it also offers to automatically add your URL for FREE to over 70 of the most important indexes and search engines, helps to learn how to improve search engine ranking, etc.
Large forums dedicated to search engine optimization where you can discuss free directories, link development, internet marketing, spiders, search engine submission, Google dance matters, etc.