If you had to choose only 1 source of income, only 1 method to use in 2015, what it would be? Would you go for PPD/CPA/PPI, would you go for authority website with good content, would you go with Clickbank/Amazon, or some any other method? If you had to choose only 1 way to promote, would you go with SEO, or Facebook/YouTube/Twitter, or some other social platform? Or something entirely different? I am really interested to hear some opinions. What do you think, what will be best to start with now?