All web sites are NOT created equal. Let's face it.
Some web sites are better than others.
And Traffic should be one of the key factors that determines which web sites users want to see. Yet virtually none of the search engines use this vital measurement in their search results relevancy rankings. This oversight leads to invariably spurious results putting obscure newsgroup postings on the same level as major web site coverage of a topic. Based on the anonymous clickstream data of millions of Alexa users, Alexa's Traffic Ranking of the Top 100,000 sites can be delivered to you on a weekly basis. This unique data source can be the difference between a mediocre search engine and a world-class search engine.