Stumbleupon is a social bookmarking service which comprises of a web browser plug-in and an internet community which encourages it’s users to rate web pages.

See Also: Social Bookmarking

This entry was posted on Thursday, August 27th, 2009 at 3:15 pm and is filed under Social Bookmarking, Social Networks. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.