Wonderful site. helps discover great websites otherwise left unknown. I have been part of the SU for 4 years now and it has been so helpful to me and my website www.uncharted101.com
I have discovered great content, fantastic websites through SU. Its safe fun and addictive.
StumbleUpon is a discovery 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.