Sometimes when you’re searching, the site you’re looking for just isn’t available — either it’s down for repairs, Internet traffic is particularly heavy, or the site has ceased operations altogether. That’s where the Google cache comes in handy. You can view the most recent version of the page in a “snapshot” format that has been captured by Google on its last crawl of the site. Not quite as useful as the Wayback Machine, but still a great feature.

Now the Google cache is coming under fire, and some say it was only a matter of time. Lawyers and website owners argue that the cache could subject Google to copyright violations, for providing access to registration-only information and other copyrighted material.