Internet Ad Revenues Rise to Historic $17 Billion in First Half 2012, Up 14% Over Half-Year 2011, According to IAB:

Mobile generated significant growth – almost doubling year-over-year – up 95 percent to $1.2 billion in half-year 2012 from $636 million in the comparable 2011 period

But seriously, who clicks on ads (on purpose) and who would even dare to tap on an ad on a phone?

That’s right. Nobody.