The Tweet Button is a small widget which allows visitors to share content and connect on Twitter.
Lightbox is small javascript library used to overlay images on top of the current page. It's a snap to setup and works on all modern browsers.
nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.
websites using the $ symbol on their website - meaning it may accept payment in this currency used in Israel.
Sites who has this tag are verfied by google to use WebMaster tools
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.