Top 15 Firefox Extensions by PC Magazine: "About site 0.1.1 provides a great deal of site information through tabbed windows. Accessed by right-clicking anywhere on a page, this extension shows Alexa traffic information, Google Linked or Google Related information, performs a Whois query, searches Technorati for references, or searches the Internet Archive Wayback Machine for stored copies of pages. This extension is extremely helpful for those who want to learn more about a site or conduct a search based on the information contained on a site"