How does Omegle work?

Sorry for the vague question, but Omegle has exactly what I want for my site. It’s the bare chat system. You send and receive messages instantly. I’ve spent today looking for a shoutbox method, but all I could find were people saying to use MySQL and javascript intervals to keep checking. Omegle updates instantly with new messages though. How does it all work?

Answer

You should read this wikipedia article, it will give you a better insight of the process.

The main keywords here are long-polling, websockets, flash sockets.

Also, this is (one of the places) where node.js+socket.io shine.

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