The websites provide the transactional platform, and then collects and distributes a percentage of the tips to the models.

For public chat rooms, the model's portion of a tip is a little less than half.

Meet and interact LIVE with thousands of free cam girls from around the world.

Make friends, watch amateur videos and participate in LIVE webcam sex chats.

Similar camming sites such as Chaturbate, Cam4and My Free boast 4.1 million, 3.7 million and 2 million unique monthly visitors, respectively.

The decentralized business model of camming has upended the pornography industry in multiple ways.

Enabled with this new revenue stream for strippers, the strip club industry went through a period of extreme growth during the 1980s.

And in the early 20th century sociologist Paul Cressey noted that within the hundreds of taxi-dance halls of America, "the traffic in romance and in feminine society" would become available when taxi dancers would offer their companionship and "the illusion of romance" for ten cents a dance.

In private chat rooms, viewers pay by the minute for a private show.

However in free chat rooms payment is voluntary and is in the form of tips, thus providing the model with an income at a minimal cost for the multiple viewers of her chat room's video stream.

Some fans communicate multiple times a day with models through social media.