Dien,

Lots to Learn on Just About ''Everything'' these Days...

Too Much Sometimes to ''Absorb'' and Use so Why Not Just Give it Away!

I Find Simply By Playing Around With Focused KeyWORDS, Questions, How To's, Tutorials, Help, Advice, Research Says, Experts on, Expertise about, Case Studies, Etc. Etc...

Because of The Current Growing Over-Load of Information...

An {Extremely Hot Money Making Trend} is RIPE for Development in & on Very Specialized subjects and Topics! ...

Piles of Good ol' Monies & Revenues Are and Will Continue to be Made Extremely Nicely Throughout our LifeTimes...

Some Have Become Very SuccessFull throughout the Web Doing it in the Last Few Years and it's Only Getting Bigger and Of Course Much More Competitive...

But Still Nicely Untapped...

Because of The Current Growing Over-Load of Information...

Some like Yourself are Probably well Aware, others, Maybe Not So Much...

I'm sure Sure it'll Be [Hitting] SowPubs, in the Very Near Future...

Definitely other Engines Are Well into It! ...

The FREE Global BRAIN is Truly Never Ending...

Quick Example(s) regarding FACEBOOK related ''ADVERTISING''...
https://www.google.com/search?q=Face...ient=firefox-a
https://www.google.com/search?q=Face...ient=firefox-a
https://www.google.com/search?q=Face...ient=firefox-a

Phil