SEOmoz | Ask Yourself... Do You Feel Lucky (about getting those links)? Well Do You?
High quality directory link building may seem dreary and time-consuming, but it's still one of the best methods to build credibility with the search engines (remember the importance of trust distance?). Today, while adding resources to our list of valuable directories, I stumbled across three webpages with valuable insight into the process of link building. Both are from universities, providing directives on how to evaluate a link - it doesn't get much more relevant than this.
Read more here: