If you want your business to be famous over the Internet why not use Yahoo to put your ads so the customers around the world can reach you and not only in the circle of your friends in FB. It is easy when you put ads to Yahoo, the possible customer would write a certain product that they like in the search box and viola your business would appear. You do not have to worry as well about how much it costs because it only cost a dollar and your product would be searchable over the Internet. When someone would search your product that means extra income and more customers would view at your sites. So if you have a business online why not let the Yahoo search helps you?