Another way for a user to interact with a website is to make the website customizable to individual preferences. StumbleUpon is a content based search engine that adapts to the individual users interests and preferences. To sign up you have to identify your interests and hobby's amongst a list of previously loaded options. This list is pretty extensive and offers enough variation and diversity to allow a personal aspect to the site. After you do that you upload a icon into your search bar. For example in Firefox it is located under your Back and Forward buttons. When you click the icon it automatically takes you to a site that fulfills the previously established preferences and criteria. It offers a great way to promote varying experiences amongst many different kinds of users.