Pay-per-click, also known as cost per click, is an internet advertising model used to drive traffic to websites, in which an advertiser pays a publisher when the ad is clicked. Pay-per-click is commonly associated with first-tier search engines.
Video advertising encompasses online display advertisements that have video within them, but it is generally accepted that it refers to advertising that occurs before, during and/or after a video stream on the internet.
Remarketing is a way to connect with people who previously interacted with your website or mobile app.
Social advertising is advertising that relies on social information or networks in generating, targeting, and delivering marketing communications
Display advertising is advertising on websites or apps or social media through banners or other ad formats made of text, images, flash, video, and audio.