New Relic offers SaaS Application Performance Management and Real User Monitoring for Cloud and Data Center deployed web applications implemented in Ruby, Java, .NET or PHP.
nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.
Elastic Load Balancing automatically distributes incoming application traffic across multiple Amazon EC2 instances in the cloud.
websites using the $ symbol on their website - meaning it may accept payment in this currency used in Israel.