You tube

[Future240]

I think there should be a youtube button like there is one for pics, and quoting.

[Phlip]

The problem with that, Calvin is that the whole URL for youtube imbedding is not what you use to imbed, only the part AFTER "watch," which would make for a lot of missed opportunities.
As it were, I don't think it will kill anyone to type [yt]numbers[/yt ]
(without that space there, of course)