A lot of people are frequently looking for the most worthwhile directories to submit to. Where it’s based on PR, link popularity, etc, a good thorough list is needed to further strengthen the concept of the “strongest” directories.

Jeff at Aviva Directory has put together a phenomenal list of the so called “strongest” directories based on SEOMoz.org’s Pagestrength tool.

You can see the list here.

Short Excerpt:
A common question asked in all the forums is: “What are the best directories to pay to submit my website to?”

If you ask this, you’ll get lots of responses. But generally, the responses tend to list the directories that are most popular or that are owned by the person answering the question or his or her buddies.

There really is a lack of objective evidence as to which directories are truly good.

Bob Mutch attempted to address this somewhat by developing a measure known as ILQ or Inbound Link Quality. ILQ measures the number of inbound links a directory has from dir.yahoo.com, dmoz, .edu and .gov sites……

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