Website using the £ symbol on their website - meaning it may accept payment in this British currency.
Quantcast helps advertisers and publishers better understand, find and access targeted audiences in real-time. Marketers use Quantcast to amplify their targeting and reach consumers who look just like their best performing customers with unprecedented performance and scale. Publishers use Quantcast to directly measure and packag...
The Tweet Button is a small widget which allows visitors to share content and connect on Twitter.
nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.
Open graph description entity tag