Yahoo started as a free web directory and is presently a web giant. Search engines have left directories behind by improving relevance of search results and human-edited directories with thousands or millions of listings look very small as compared to billions of pages that search engines have indexed.
Keeping these directories updated has become more and more challenging as internet and web continues to explode. Weblogs or blogs have added to this explosion by allowing laymen to have his person web space. Link spam websites have added to the misery of …