Webcam Chat via Flash

I'd like to do a bit of research on how to create a webc开发者_JS百科am chat web application. I've seen Flash do this. What is this technology called and where can I go to find out more about it? Also, any issues I need to be concerned about (e.g. server requirements, etc.)? Are there any other viable solutions other than Flash?

---

This might help you to get some concept,

http://www.youtube.com/watch?v=0DdrMNVn-vw&feature=related

Good Luck!