How much does external media and pressure influence your self image?

Television, the Net, family, friends, peers, colleagues, society. How much do these influences effect your own internal barometer for what is OK for you? Does it make you feel less then, or more than. This can relate to things you own, where you live and also your own personal self image.

How much of this do you internalize? Or does your own barometer emanate from deep within? If you do use external sources for what is OK for you, how is it working for you?