Do you use Internet?

I'm hevey Internet user.
I always write Blogs and E-mails and view Web in free time.

Many times, I saw URL and blog topics on TV or other advertisements.

How many people use Internet in America?
What kind of people use Internet in America?
I'm really interesting to this questions.

Because, many people use Internet in Japan.
But, I never see blog topics on advertisements.
I think to Japanese trust a big company, don't trust a individual.

Do American trust personal blog topics?
If Japanese see that, they feel unease to that advertisement.

This different is very interesting.