DMOZ, also known as The Open Directory Project (ODP), is a large, categorized human edited directory of websites and pages, which is staffed by volunteers. Every website and page that is added to the directory has to be manually reviewed before it is included. Listing in this directory is free.
DMOZ is not searched by many people actually use for searches in the same way that Yahoo! is used, so the directory itself is of little value in generating traffic. However, its data can be freely downloaded, and any website, however small, can use it. One not so small website that downloads and uses DMOZ's data is Google. Once a site is added to DMOZ director
This has some significant effects for websites that are listed in DMOZ. PageRank is an integral part of Google's ranking algorithm, and higher PageRank helps towards higher rankings. The PageRank within a website is increased by pages from other sites linking to it, and the higher the PageRank of the pages that link to it, the better it is for the receiving site.
Getting a website listed in DMOZ can be very frustrating. We know that being listed will probably help our Google rankings, but getting in can take a very long time. In this article I will explain why it often takes so long and why what you do when submitting your site is sometimes the cause of the delay. But first I will explain what DMOZ is and why it is worthwhile for websites to be listed in it.
A listing in DMOZ creates two significant links into a website - one from DMOZ (Google spiders DMOZ just like any other site) and one from the Google directory. Both of these usually have decent PageRank. Then add the links from the thousands of small sites that have downloaded and use the DMOZ directory, and you can see why it is usually quite beneficial for a website to be listed in DMOZ. Simply being listed in DMOZ can take a website from a Toolbar PageRank value of 3 to 4 and even from 4 to 5.
However, directories such as The Open Directory aka dmoz and the Google Directory attempt to organize Web by dividing it into topics and subtopics i.e. categorized. Some examples include: Arts, Science, Health, Business, News, and Entertainment. If you're looking for information on the Web that fits neatly into an obvious subject or category, go first to a web directory.
So is there any value at all in the DMOZ directory? As a useful catalog of the Web, and when compared with the major search engines, the answer is no, although a few people do find it to be a useful research resource. For website owners, the links to their websites that a listing in DMOZ creates are useful for search engine ranking purposes, but even those are becoming less useful as search engines improve, and seek to block out unwanted duplicate content from their indexes. Perhaps the biggest use that DMOZ has is to provide an enjoyable hobby for a few thousand people.