Rest assured, there is no rocket science involved here.
They all offer something unique and are backed up by a community, which has made them attractive destinations for Chatroulette refugees.
The website's audience grew rapidly which led to the rise of a number of alternatives trying to provide a better user experience by incorporating a number of additional features.
I've had many fun nights on the website's random chat feature — you meet some amazing, funny, and definitely weird personalities while visiting these sites and hopping online with a bunch of friends makes it an even more enjoyable experience.
In your opinion, do any of these clones do Chatroulette better than the original?
What would you, as a web app user, want to see in a stranger-to-stranger video chat service?