The Internet is a cruel place. This time we aren't talking about the vitriolic comments and shame-hungry 24-hour media cycle, though those things anger us on the daily. No, we're talking about the dog-eat-digital-dog world of staying relevant online. It seems like every day a website that once had legions of loyal users is bought out, absorbed, or simply shuttered with little more than a "website not found" in place of its once mighty homescreen. Social media behemoths, hosting hotbeds, and file-sharing giants have all met their ends as newer, more user friendly solutions take their place. Today, we take a moment to remember the sites that have made their way to the Internet graveyard, lost in the relentless forward march of the World Wide Web. Pour one out for your dead homepages: here are 20 Websites You'll Never Visit Again.