Promoting MMO types offer

What is the best way to promote make money online types offers to a cold traffic? I know they works with warm traffic via e-mails, but they take time and that you would need to build trust and likability in order for it work. But my main question is for cold traffic. I did a small test 8-10 months ago with direct link to an offer page. Spent like $100 and the result was big fat zero. You think that , " hey everybody wants to make money online... so why wouldn't it sell? Turns out making a conversion on a cold traffic with direct link to the offer/sales page is like winning a