Internet penetration is on the rise. It was revealed today at the AllThingsD D11 Conference that 2.4 billion people are using the internet now, and a sizable part of that number may be thanks to mobile devices. One of the speakers at the conferecne, Mary Meeker, a partner at Silicon Valley venture capital firm Kleiner Perkins Caufield & Byers Meeker, explained how the 2.4 billion internet users account for 34% of the world’s population and is an 8% gain from last year’s numbers. Currently, the US has about 78% internet penetration.

mary meeker the person The internet is becoming increasingly mobile

An even more impressive figure however, is the rise in mobile internet penetration. According to Meeker, mobile devices accounted for 0.9% of internet traffic in May of 2009. The following year, that number was 2.4%. Today, that number has skyrocketed to 15% and by next year, mobile devices could account for a third of all internet traffic in the world.

Meeker pointed out however, that despite the large growth in mobile internet use, US businesses have dedicated only 3% of their advertising funds to cater to mobile customers. Meeker says that if US marketers wake up to the opportunities in the mobile market, they could earn as much as $20 billion extra in revenue.

via CNET