Wayback Machine
Websites come, websites go. But are they really gone ? Not always. There's something called The Wayback Machine , where you can retrieve old versions of current, or even defunct websites. It's not every page, and it's not every version of a given page; some companies block access to their pages. It's not just curiosity, though, that fuels the Wayback's usage. Once, I had a question that involved accessing a form or document from the Bureau of Indian Affairs website. For some bizarre legal reason, the BIA page was blocked, but I was able to access the piece using the Wayback Machine to get an earlier version of the BIA site. Here are 50 Fun Ways to Use the Wayback Machine .