List of PR5-PR9 Web Directories
This is a good list of free world web directories and free UK web directories . There are literally thousands of free web directories on the internet but most of them are not worth the hassle, unless you’re looking at niche specific or regional directories. In fact, I suggest submitting your site to directories with a homepage PR of at least 4. If you have more time on your hands or the budget to do so, you can also target PR3 directories, however I would start with the bigger and more established free directories, such as these ones here: Free Web Directories and Free UK Web Directories
Submitting your Website to Link Directories
Most SEO professionals will tell you that it is not enough to place your links in directories and search engines. In fact, most people will tell you that it is better not to do that, since that may seem like spam to Google. In fact I have seen websites disappearing from search results after an aggressive submission campaign and I have also seen websites that went up is SERP (Search Engine Result Pages) after a smart execution of such a submission campaign. Such campaign must be done in moderation! My advice is to submit your websites only to directories that have a minimum PR (pagerank) of 2 or 3 and do no more that 100 submissions per week per website. Also, always submit your web link to a relevant category. Although I am not a big fan of directory submissions, such campaign works best when your domain is already well established (at least a year old) and you just need a push in the search results for a given keyword. You can use that keyword as your link’s title. Another word of advice is - do not start your search engine marketing with directory submissions if you’ve got a new domain and a new website! This will only slower the process of indexing your website. What you want to do first is to get quality links from trusted websites (PR of 5 or higher) and let Google discover your site through those links.

