...very basic question. PPC is adwords, etc.,
SEO is all about natural listing. With
SEO your profit will be always much bigger compared to PPC except if you are noob in
SEO. (let's say you get $30,000 from
SEO, maybe you only need to spend $2K which means your profit is $28K. But if you get $50,000 from PPC, maybe you spend $40,000 which means you still get better income from
SEO)