In the world of yesterday, people have to communicate in a physical way. Work place or business location is a physical environment. Business activities can only take place when people get together in a place or when there is exchange of letter. Later, telephone and mobile phones came to make it easier. Today, work and employment has gone virtual. Business transactions, shopping and communication are being initiated and completed online. Real time communication using video conferencing has replaced location based meetings and job interviews. Online based jobs and businesses has become a gold...