AdRoll is a simple and effective platform for advertising online and retargeting previous website visitors to bring them back to your site.
Google Analytics Dynamic Display Advertising Retargeting Pixel.
Google Analytics Display Advertising Retargeting Pixel.
A pingback is one of four types of linkback methods for Web authors to request notification when somebody links to one of their documents. This enables authors to keep track of who is linking to, or referring to their articles.
nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.