BarCamp is a place where everybody can participate for free and hold a presentation on any topic connected with IT, even partly connected :)
There were about 400 people registered on the website, i don't know how many people actually visited it. I saw many people appearing just for the second day, as it was Sunday (this Saturday was a working day in Armenia).
There were 3 simultaneous tracks of presentations in different rooms.
It was pity since we were physically unable to participate in all the interesting sessions. There were no breaks, and in order to grab a coffee, you should skip some session.