What follows is an amazingly trivial piece of code that takes your current URL of the page visited and passes it to Google; so if a page is down, you can always see what was there the last time it was archived. It’s not tied to this site; it’s entirely self-contained JavaScript.
Here’s google, and this one is for The Internet Wayback Machine.
These little guys have found a permanent place in my “bookmarks bar” – I hope you find them useful as well!