
13
2
Social Networks
A Survey
2.1 INTRODUCTION
While the concept of social networks has existed for several decades, it is only during the past
decade with the advent of the World Wide Web that the concept of electronic social networks has
emerged. Today, such electronic social networks are commonly used between several hundred mil-
lions of individuals on a daily basis. These social networks connect numerous communities so that
they can communicate and share various personal and business-related information. We are con-
ducting extensive research on analyzing and securing such social networks. This chapter provides
a survey of social networks and ...