[mattmanser]

Most business now have to pay a Google tax in one way or the other, whether it be adwords, content building, link building or paying for SEO.

That's just the cost of entering a particular marketplace.

Think of it as rent.

[pyre]

Paying for SEO isn't a 'Google tax.' It's marketing. That's like saying that when you start a business you have to pay the 'Yellowpages tax.'

[Tichy]

Still, Google can't prevent you from running an internet business. I have heard some cases of companies prevailing without Google's approval.

Most businesses need to pay for marketing, of course running businesses is not free.

[swombat]

Moreover, rent to be paid to those who actually built the building.

If Facebook adds as much value to the web as Google did with their search engine, then they more than deserve getting "rent".