Todays world has became the world of computer and internet. life without internet and computer cant be imagined. Almost everyone is related to internet and computer directly or indirectly. that is why now big companies choose to advertise their product online. online marketing can be done through website banners or affiliate programs. the tremendous use of internet has made the advertising easy. The digital marketing methods has replaced door to door marketing as people can get to know about the product without physical interaction with people.