Recently, I've found a very interesting web page. http://www.archive.org/.

Its purpose is to build an Internet archive of texts, audo files, software and, which is the most interesting I think, web pages and especially their web crawls. This means that they keep archived web crawls and you can check and read internet pages that existed, for instance, back in 98 or in 2000 and so on.

Simply, go here: http://www.archive.org/web/web.php and type the address of the web page you want to check and you'll see its chronological web crawls. It's so cool and exciting; it's like a time machine as you can read sites that existed in the past and do not exist any more or already removed that content.

This site is real treasure-house - I even found some of the versions from last year of templeofthought.org