According to some internet expert, the new IPv6 protocol will offer 340 trillion trillion trillion addresses! Wow! ... it's said that if every man, woman and child on Earth had a billion devices each with an IPv6 address, you wouldn't even come close to scratching the surface of the number of addresses available.

"Leading internet firms have set 6 June as the World IPv6 launch day. IPv6 is the new net address system that replaces the current protocol IPv4, which is about to run out of spaces to allocate.

Web companies participating in the event have pledged to enable IPv6 on their main websites from that date. The Internet Society, which made the announcement, said the day represented "a major milestone" in the deployment of the standard.

Facebook, Google, Microsoft Bing and Yahoo are the inaugural web firms involved."

Source: BBC