Earning online's tough

I'm still kinda new to online earning. It almost seems like if you don't have money(like an investment), you won't be able to earn. Anyone with ideas?

try to build play store game review blogs on wordpress and build backlinks using web 2.0 and blog commenting to tank on google... keyword research is important. build micro niche blogs on wordpress for focus and fast results with faster revenue time to payback for efforts.