This slide is about the introduction of a social bookmarking site named as StumbleUpon. .

1. STUMBLEUPON
INTRODUCTION

2. • StumbleUpon.com
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.

3. • STUMBLEUPON USES COLLABORATIVE FILTERING (AN AUTOMATED
PROCESS COMBINING HUMAN OPINIONS WITH MACHINE LEARNING OF
PERSONAL PREFERENCE) TO CREATE VIRTUAL COMMUNITIES OF LIKE-
MINDED WEB SURFERS. RATING WEB SITES UPDATE A PERSONAL PROFILE
(A BLOG-STYLE RECORD OF RATED SITES) AND GENERATE PEER NETWORKS
OF WEB SURFERS LINKED BY COMMON INTEREST. THESE SOCIAL
NETWORKS COORDINATE THE DISTRIBUTION OF WEB CONTENT, SO THAT
USERS "STUMBLE UPON" PAGES EXPLICITLY RECOMMENDED BY FRIENDS
AND PEERS. GIVING A SITE A THUMBS UP RESULTS IN THE SITE BEING
PLACED UNDER THE USER'S "FAVORITES". FURTHERMORE, USERS HAVE THE
ABILITY TO STUMBLE THEIR PERSONAL INTERESTS LIKE "HISTORY" OR
"GAMES".

5. • StumbleUpon claims to have more than 10 million members as of 18 May
2010.[22] StumbleUpon said that before the end of May 2008, it would have
collected its five-billionth "stumble", more than one billion of which would have
taken place in 2008 alone.[23] In August 2011, StumbleUpon reached the 25 billion
stumble mark, at which point they were adding over 1 billion stumbles per month.
In April 2012, StumbleUpon announced that it had over 25 million registered users
of the service.