It seems that since last year, a lot of companies are trying to cash in on Googles success. I'm always curious, why is it only Google that they want to charge?

It seems that since last year, a lot of companies are trying to cash in on Googles success. I'm always curious, why is it only Google that they want to charge? Sure, Google has the biggest presence online. But I'm sure other companies are not far behind. Facebook being one of them, especially in terms of bandwidth usage.