StumbleUpon is a popular browser extension that lets users explore the internet. The app installs a button that will open a random destination based on niche categories chosen during set-up. Liked pages can be documented with a thumbs up, and unwanted sites can be blocked with a thumbs down. Over time, your input will refine the program’s algorithm, so it will quickly learn to provide what you are seeking. While guests can use the service anonymously and freely, creating an account is advised to enjoy all the conveniences this service provides. Discover new online interests one click at a time!