Online classified advertising is the procedure for advertising a item or service by writing an interesting description about it. The description can comprise of the name, Phone number, Address, Website url, Price, Email address and a picture pertaining to the item or service being promoted. It is called classified advertising because all the advertisements that pertain to a particular category are classified under one heading. Cars that, For example are on offer on hire or for sale would be classified under automobiles identifying classified ad posting directories to achieve benefit from classified ad posting, It plays a crucial role to guarantee that the directories experience satisfaction page rank. You can also use alexa to know the site rank and also identify the sites that link to it. This will help in building your classified advertising directory list. Post the ads in those directories that have a high potential of customers. The more the customers, The better is the visibility. Don t forget the internet marketing rule of five which says to share your classified ad to at least 5 sites.