Well, there are primarily two sites that offer PPC advertisement, The first is- Google Adword which is now known as Google Ads, and the second is- Microsoft Bing Ads. Other than these two options you will also find more options for PPC ads but they account for less than 10% of the market share as these two sites are responsible to provide almost 90% of the PPC advertising market. If you want to know more then you can call our experts to clear your doubts.