Yes, as far as i've read, CPA (cost per action) is one way of earning money online.
Usually, mga surveys jud ni.
Everytime naay mo-fill-up sa imong survey, maka-earn ka.
CPA's are mostly taas og revenue, but like what most people say.... surveys are damn annoying.
Maka-income tinood ka at first, pero later on, mo-avoid na ang mga tao sa imo site any (mao ni ako nabasahan ha).