Logo for StumbleUpon.com, originally designed back in 2005.
SU since then became one of the most popular services of the social web providing bookmarking, recommendation and discovery of websites to a community of 6,640,667 people (as on 2008-12-20). StumbleUpon was a acquired by eBay in May 2007.
Designer: Markus Angermeier. Follow me on SU.
