"AVOS is a new Internet company, led by the founders of YouTube, Chad Hurley and Steve Chen. AVOS is located in San Mateo, California"

I'm surprised I hadn't heard of that company before. I thought these two were still working at YouTube. Are they?

"YouTube (…) which was acquired by Google 18 months later for $1.76B"

I was surprised of seeing that as well, since the price I have seen everywhere else was $1.65B. I guess they know that better than anyone else but why the difference?