This document discusses the advantages and disadvantages of social networking sites. The advantages include increasing leads and sales, building customer relationships, creating awareness and engagement, forming alliances, being full of viral potential, providing educational benefits, and being good for HR. The disadvantages comprise identity theft, addiction, online harassment, cyber stalking, creating false profiles, cyber phishing, malware addition, wasting time with lack of human touch, and usage by burglars for planning thefts.