Stumbleupon

# StumbleUpon helps to discover and share great websites.
# They have 8 million+ users.
# We can add our sites & search sites.
# If we find relevant site we can click I like button & if it is not not relevant click Unlike button.
# We can Add subscriptions and friends
# We can Join relevant groups,review sites and stumble.







http://www.stumbleupon.com/favorites/