Google basically is a search engine but now google is entering in many unrelated business business student mat called it related diversification, like launching Google mobile, Google television etc so what do you think that google should do this diversification or it need to just sustain its core business????
I think Google wants to make one package service which can attract more users. The more users google got, the more value it will produce.
It means Google still has insecurities, and the best way to grow is to expand their products and services...