BDSM includes various scenarios revolving around dominance and submission sometimes expressed through sexual bondage, slave master roles and the intermingling of pain and pleasure.
"Cyber Sex" is a term that was most widely used in the early 90's and while it is most defiantly is still done it has been shortened to "cyber" if it is addressed at all.
Please spread the word about 321 Sex Chat on twitter and any other online venue you frequent that allow sites such as this to be posted. While both allow for typing, talking or camming with others they are completely different types of sites.
Most "cam sites" have a host, usually a girl who is paid credits for her time while she strips.