NEW YORK--(BUSINESS WIRE)--Internet advertising revenues in the U.S. climbed to an historic high of $12.4 billion for the third quarter of 2014, according to the latest IAB Internet Advertising Revenue Report figures released today by the Interactive Advertising Bureau (IAB) and PwC US. It is the highest quarter ever, besting the record-setting revenues of Q4 2013, which came in at $12.1 billion. Q3 2014’s milestone numbers represent a year-over-year uptick of 17 percent over the $10.6 billion