Trading chat room for my website, any suggestions?

I am looking for an HTML5 (mobile friendly) chat room for my trading room website (no live video is needed). It should allow adding graphs images and YouTube videos.

I could find two services RumbleTalk and cbox but both have no 3rd party users integration, any suggestions?

Have you tried Free Web Conferencing Software, Free Online Meetings, Free Webinar Service Providers ? (AnyMeeting)

Nice, but not embeddable inside a website and no 3rd party integration as well.

this is just something I was looking for, for quite a while now. I checked Rumbletalk trade chat just now and it looks really good.
Seems like it can be used for exactly what you asked here.