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Last time anyone counted heads on the Internet, there were more than 3.2 billion active users scattered worldwide (more or less evenly). The World Wide Web Consortium (WC3) has even had to adopt new types of IP addresses (IPv6) because the older ones (IPv4) were running out. The data generated annually is being measured in exabytes (1 billion gigabytes). Internet providers estimate that annual global IP traffic will shift into a new gear, passing the zettabyte threshold by the end of 2016. For who’s asking, that’s 1024 exabytes.