Social network Facebook has
introduced hashtags, allowing users to
click and see what their firends think
about trending topics.
Facebook said that it will begin to roll
out the feature on its social network,
making it easier for users and
advertisers to find hot spots of user
activity around specific events or
topics.
The hashtag, which appears as the #
symbol and was first popularized on
Twitter, enables users to follow
specific topics of conversation within
a social network's ever-changing
stream of user comments.




www.telegraph.co.uk/technology/facebook/10117483/Facebook-hashtags-introduced.html