Dirtyroulette is pretty busy and ranks well above 50k in Alexa and contantly growing.
Dirtyroulette is also is one of the top 10 sites like Chatroulette.
free chat now , chat no register , free text chat , random chat , Singles chat , Nickname , Age , Sex ( Male / Female ) , Country and State.
Dirtyroulette opened in March of 2013 and they have thousands of users online at any given time so finding someone to chat with is always easy on Dirtyroulette.
It just launched a few years ago and has already gained a loyal following of regular users.