I have been on picoworker for sometime now , at least for about 3minths and i am still on $2.5 dollar while the minimum balance is $5, I don't really know much about timebuck.Well in topic at hand which involves timebucks and picoworker, I have to say I am unfamiliar with both as I am just hearing about them but I have to say the reviews i have seen in them are bad and I don't think they would be worth it