I suppose the fastest way without regard to the amount earned would be faucets. There are hundreds, if not thousands out there, but I have not found one that is worth the time.
If you are in to faucets sir, i highly recommend moonbitcoin and freebitcoin. Moonbitcoin gives you daily reward so the more you use it the higher the daily rewards will be while freebitco.in gives you reward points per claim which you can exchange for gadgets, etc.
I remember my days of using faucets after reading such replies which is good because i love to remember my past from which i realize i'm earning too much, lol.
But to be honest faucets are just a waste of time though they are good until you are knowledgeable about bitcoin and then just stop wasting your time there and start doing something else like signature campaigns or trading or something.
