List of 900+ PR3-PR8 Free Web Directories in Excel and tab delimited Text format. Link building through submission to web directories is an important part of the overall link building strategy. Here you will find a list of over 900 free web directories that will give you a one way text link many of which require no reciprocal link. Getting more and more one way text links through directory submissions is an effective way to build your link popularity and improve search engine ranking.