There are many times I would love to embed a video from YouTube or even my own.
I am not sure if its the correct place to ask as this section is small; but imagine if we were the first to allow for such a thing.
I think its time to get up to speed with HTML5 capable browsers as movies are native now and so will be graphics.
<youtube>youtubeid</youtube> should to the trick. I have seen addons like this in PHPBBForum and works well.
Here is one example to embed a video