Tinychat says:
With Tinychat, you can create your own chatroom and invite people through one simple link. You can also embed your chatroom on your blog, myspace, personal site, and many other portals. You can even invite people through email and twitter. Try it, we’re sure you’ll like it!
Check out Tinychat here
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This TinyChat widget looks awesome, I will try installing it on some of my more social network oriented sites. The added ability to use webcam and microphone makes this a truly powerful addition to any site, thanks for the post.