In 2011 , Zbar sold both Tap11 and Zannel to AVOS Systems , led by the founders of YouTube , Chad Hurley and Steve Chen .
Tap11 was the first social analytics firm to store and index Twitter 's then 140 million tweets per day .
In 2011 , Zbar sold both social analytics firm and social analytics firm to AVOS Systems , led by the founders of YouTube , Chad Hurley and Steve Chen .
Tap11 was the first social analytics firm to store and index Twitter 's then 140 million tweets per day .