Синяя социальная система управления закладками и публикациями.
Log in with your username.
Я забыл свой пароль.
Log in with your OpenID-Provider.
He rinsed and repeated a few times till he was left with about 15,000 people who saw him get it right several times in a row. They were obviously very impressed. He then invited them to pay $5,000 each for a seminar with him on picking stocks! :)