The folks over at Lifehacker have put out a nice article about the extension for Firefox known as About This Site. They cover this little beauty from head to toe and let you know why you may or may not be interested in using it.
When you happen upon a new web site – or you’re just interested in finding more about one you frequent all the time – it’s difficult to get a sense of how popular it is, how long it’s been around, what people are saying about it and how much it’s been bookmarked. The About This Site Firefox extension offers one click access to web services that compile just that kind of information for you.
Want to know more about any Web site? This would be a good place to start.