Is the end of the Internet on the horizon? Some experts think so.

On Sept. 9, 2011, experts believe the last set of IP addresses will be released. The IPv4 system that the net runs allows for a few billion addresses. According to experts, we only have about 7 percent, or 300 million, of those IP addresses left.

IPv6 could solve all these problems and provide users with trillions of addresses, but many countries may be slow to adopt the new system.

BBC Story - Internet approaches addressing limit