Chatroulette was created in 2009 by a 17 year old kid who ran the site out of his bedroom in his parent’s home.
Having done no advertising, this site grew to an enormous size by word of mouth.
Just make sure that you take advantage of the feature here, and start sending pics to your new friends you make right away.
The connections you make will be much more meaningful if they are accompanied by visuals, trust me!
The only way to do that, is to offer a completely free service, because otherwise too many people would not bother even using it!