nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.
PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML.
Elastic Load Balancing automatically distributes incoming application traffic across multiple Amazon EC2 instances in the cloud.
Wix.com is a cloud-based web development platform that allows users to create professional HTML5 websites and mobile sites, through the use of their online drag and drop tools.