StumbleUpon is a discovery engine (a form of web search engine) that finds and recommends web content to its users. Its features allow users to discover and rate Web pages, photos, and videos that are personalized to their tastes and interests using peer-sourcing and social-networking principles.

Put simply it is a bookmarking service where users can bookmark favorite sites and it will suggest similar websites, or websites suited to the users interests.

Source: StumbleUpon

If you need any advice on StumbleUpon, get in touch with me over here… That’s kind of what I do…