Have you ever noticed when going to Twitter, you often times see failure notices on Twitter and on other sites. Yes, these pages, known as 404 error pages, tend to be SUPER ANNOYING somewhat inconvenient. What you should consider when dealing with your own website is how beneficial are you making your 404 error page? For many companies, having an informative and useful for the viewer. I stumbled upon the Designer Daily blog about some of the featured blogger’s favorite 404 error pages. Take a gander at our 404 page when I look up a non-existent “heather” page.