DoubleClick is a provider of digital marketing technology and services. Companies come to DoubleClick for expertise in ad serving, media, video, search and affiliate marketing to help them make the most of the digital medium.
Unified Advertising and Analytics solutions from Google
Polyfill is a service which accepts a request for a set of browser features and returns only the polyfills that are needed by the requesting browser.
This site uses the viewport meta tag which means the content may be optimized for mobile content.
Flickr - almost certainly the best online photo management and sharing application in the world
Google APIs are application programming interfaces developed by Google which allow communication with Google Services and their integration to other services.
nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.
The http-equiv attribute provides an HTTP header for the information/value of the content attribute. The http-equiv attribute can be used to simulate an HTTP response header.