International Journal of Computer Science and Mobile Computing (IJCSMC)
Spam is an unending headache associated with the phenomenon called the Internet. Most of the people are spending a lot of time on social networks where users build explicit networks and create virtual relationships. But users have less control over messages that are posted on their walls. Users may get spam (unwanted) messages. So, social networks can be treated as double-edged sword. This paper presents different types of spam prevention and control mechanisms provided by the social networks and different techniques to improve user control.