This is pretty amazing, AdMob pass 20 billions ads impressions on mobile sites. Check their blog for more cool infos.
“In march of 2007 we had 1500 publishers, were serving about 500M impressions a month, didn’t have a graphical ad unit, and the company stood at 30 employees.
12 months later we have over 3900 publishers, are serving 2.5B impressions a month, serve millions of graphical ad impressions on any given day, and have over 60 employees diligently working on solving all the interesting problems mobile has to throw at us.”
Alessandro
It is an incredible result. They are working good.