Global Internet traffic is expected to quadruple between 2010 and 2015, according to data provided to Mashable by Cisco. By that time, nearly 3 billion people will be using the Internet — more than 40% of the world’s projected population. On average, there will be more than two Internet connections for each person on Earth, driven by the proliferation of web-enabled mobile devices. Internet traffic is projected to approach 1 zettabyte per year in 2015 — that’s equivalent of all the digital data in existence in 2010. Regionally speaking, traffic is expected to more than double in the Middle East and Africa, where there will be an average of 0.9 devices per person for a projected population of 1.39 billion. Latin America is close behind, with a 48% increase in traffic and an estimated 2.1 devices per person among a population of 620 million. -- Lauren Indvik