To be honest, I feel so blessed because I have found internet marketing WHILE being in a third world country where I can get the best of a certain skill for a pay of $100 a month. The usual problem here is the "too-relaxed" mentality where there isn't really a motivation to excel in life. Still, I'm surrounded by talented people.
However, in your experience with outsourcing to people in a different country, have you encountered many instances where the guy would simply vanish and not go online OR he keeps going "invisible" on you while being late on his tasks?