Im new in youtube marketing.. Will my youtube video "hang" if 500 unique visitors see my video? What i mean is 500 visitors see at one time..where can i check all this..
Very likely depending on the YouTube server load but technically, they could handle it. I would not use it as a conference/training method, starting simultaneously, but over a few hours it should be no problem. If you are all inside the same private network, you will likely see issues locally before YouTube suffers. That's a lot of stream for a network to absorb. Louis More details would be needed to really answer.
Thanks for the answer.. what i mean is, if we want to promote our own products or services using youtube video..it will be no use if our video is "hang" or buffering slowly because many people watch at a same time.
Many do as you say, you should be fine unless you become very popular, very popular. They have better capabilities, in regards to video, than most hosts and a host with that type of support would not be cheap. As long as YouTube doesn't ban you for breaking any rules, you should be fine.