John is the senior research security analyst for Terror Trends International, a research foundation that provides terrorism information to companies as wellas governments. John and his team have been monitoring terrorist cyber trafficfor over eight years now and have noticed an interesting trend. Through translated bulletin posts and intercepted email communications, they have seen terrorist and extremist groups use less conventional means of communication on the Internet. They appear to be using technologies like social-networking sites, eBay,and even environments like Second Life. By using these new communication methods, it has made the job of John and his research team much harder. What are these Internet communication environments referred to?

A.
These are called Web 2.0 environments.

B.
These environments are often referred to as Internet2.

C.
These collaborative areas on the Internet are called Centrix environments.

D.
Environments such as these used by terrorists and common people alike are called Symbiotic Networks.