And, I have yet to find any successful freelancer that is actually using those sties.
Thus, my set of strategies is somewhat different.
Number One, I search for those people that are nodes in the start-up and business communities that happen to have a need to be seen as knowing moible UX skilled devs. Typically, these are people who have previously co-founded start-ups and are now strategy consultants.
At this stage, I have to find those who are somewhat a bit hungry and new as strategy consultants. My online portfolio is than being structured to show what a high engagement Android UX app experience is about as that is an immediate start-up problem to solve that affects the future of that start-up.
Than I let those start-up strategy consultants think its the strategy that they have come up[ with, ie Android first as Android has 80% market share in the USA.
Why not post in HN or the numerous BuiltINCity-Sites? Because, at the stage they start to consider developing an android app first they, ie the co-founders, are not reading those sites to helop find someone as the strategy consultant is already suggesting someone. And that strategy consultant also may be a VC or Angel investor.
Which Tech and Start-Up Hubs? I chose two start-up hubs near me to start, the big one Chicago and the a small one Indianapolis. Chicago is one the cusp to becoem bigger than NYC in about 5 years from now so it is probably a good choice.