We have higher expectations than most for SEO friendly. Specifically, we ensure that the general directories that we choose:
1.pass PageRank (links are dofollow and are not redirected).
2.have at least 50 pages indexed by Google.
3.are not penalized by Google.
4.do not belong to a large network of sites hosted on the same IP. We do not submit to more than one directory from the same IP.
The most important thing to select the directory sites is that sites must not penalized by Google. It will be better if having high page rank and do follow sites always effects more in SEO.
Directory submission is also important for success of Search Engine Optimization campaign. Thanks for sharing such a useful tips regarding selection of good directory website.