In recent years social websites have become important components of the web. With their success, however has come a growing influx of spam. If left unchecked, spam threatens to undermine resource sharing, interactivity and openness. This article focuses on various countermeasures that are based on detection, demotion and prevention. Although various countermeasures have been proposed for e-mail and web spam but still there are challenges . This paper surveys various anti-spam strategies for social networking. In literature we have studied that many anti- spam strategies have been discovered but still there are some open challenges to these techniques. Some of them are highlighted in this article.

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Social networking spam anti-spam strategies