I think it would be cool to have the forum consume objects like Youtube videos and even provide objects as HTML for posts, topics, and members.
I would probably use this library: https://github.com/mpratt/Embera
I remember I found out about oembed a while ago, but I didn't spend much time on it because Spuds brought in the js library, but that php one is rather cool. 8)
What exactly is this ?
Makes it easier to extract the important parts of a webpage. Instead of grabbing all of the HTML from a Youtube page and parsing out the object, it gives you all of the info about the video.