In my quest of job search, I have visited and created profiles on many job search sites. When introduced to Linked In as one of the most popular professional network building site , I was not not entirely sure how is it advantageous over other available job search sites. Like other sites,it allows recruiters to connect with you ; giving access to your resume. I decided to create a profile on linked In and one of the very useful features that I found was if you have been working for years, LinkedIn helps you summarize your entire work career in just a sheet or put in other words in someways acts as a resume building tool. You can join groups and connect with previous employers/co workers. Google search analogues to internet search that I have been habituated to do before making a decision I found few interesting reads.