PPC is generally known as Pay per click also known as cost per click. It is an internet advertising model used to direct traffic to websites, In this the advertiser pays a publisher when the ad is clicked.
Pay-per-click is commonly associated with first-tier search engines With search engines, advertisers typically bid on keyword phrases relevant to their target market. In PPC contrast, content sites commonly charge a fixed price per click rather than use a bidding system. PPC "display" advertisements, also known as "banner" ads, are shown on web sites with related content that have agreed to show ads and are typically not pay-per-click advertising. Social networks such as Facebook and Twitter have also adopted pay-per-click as one of their advertising models.
So, websites can offer PPC ads. Websites that utilize PPC ads will display an advertisement when a keyword query matches an advertiser's keyword list also content site displays relevant content. SO, these advertisements are called sponsored links and also called sponsored ads. PPC gives you the organic results on search engine results pages. It will show results in anywhere a web developer chooses on a content site. So, PPC Campaign is most important to get more publicity your services and products.