i think building a user-driven sites have a potential in eanrning more from adsense.. social community for example..
MFA sites still work very well. You just can't expect the spammy looking BS filled MFA sites of yesteryear to do so, and it IS admittedly harder that it ever has been. Still, if you know what you're doing you can do more than ok with MFA sites. If you want to win in this game, learn to do PROPER keyword research, then learn how to build the site, how to write the content so that it satisfies both readers, Google and your need for people to click your ads (you have to know how to trigger those ads, and that starts with good keyword research), and then how to get links. If you know how to do this stuff you can do it legitimately and make a decent income in 1-2 years (don't expect a whole lot after one year, but after two you can do VERY well) - faster if you have some money to spend on aged domains and outsourced content.
..Is micro niche sites are also termed to be MFA sites as their contents are mostly static? And if we target in more than 1 (suppose 3 ) keywords, does it mentioned as MFA sites? How google understands and distinguishes MFA sites? I m trying to make tones of micro niche sites so m asking. Please suggest me