Google Publisher Tag (GPT) is an ad tagging library with which you can dynamically build ad requests. GPT takes key details from you such as ad unit name, ad size, and custom targeting, builds the request, and displays the ad on web pages or mobile apps.
This script is the defacto way to enable use of HTML5 sectioning elements in legacy Internet Explorer.
Sleek, intuitive, and powerful mobile first front-end framework for faster and easier web development.
Open graph description entity tag
The Open Graph protocol enables any web page to become a rich object in a social graph, a open protocol supported by Facebook