It is SEO with a black hat. And it's so cool theres even wikipedia article about it: http://en.wikipedia.org/wiki/Search_engine_optimization#White_hat_versus_black_hat_techniques
Over a period of years not one of my websites gets more than 50% of its traffic from Google.
It's still the biggest single source (referral from other sites comes in second at about 22%, followed by twotter and facebook at about 13% etc etc) but if Google deindexed me tomorrow I'd still get about 60% of my traffic and 70% of my income (Google traffic is the worst converting I get overall)
Scritty
According to Google (and remember they have zero authority - just an "opinion") any self promotion is black hat.
"Just get on and create the best website you can" is their line.
Fact is that will get you no-where.
End of the day like ANY OTHER BUSINESS - you promote in any way you can (to expect a business owner to do otherwise is an idiotic denial of human nature and simple business principles)
But don't build a website for Google alone.
Over a period of years not one of my websites gets more than 50% of its traffic from Google.
It's still the biggest single source (referral from other sites comes in second at about 22%, followed by twotter and facebook at about 13% etc etc) but if Google deindexed me tomorrow I'd still get about 60% of my traffic and 70% of my income (Google traffic is the worst converting I get overall)
Scritty
Do you have amazing content on your site and promote your site on facebook? Can this be done with a site that has average grade content?
I find it strange you are gettting so much traffic from the facebook, because i never got a visitor from there. The only site besided search engines i am getting visitors is pinterest.