On several forums on the interweb, I've been seeing BB codes or custom codes that embed Youtube movies in a safe and simple way. The syntax is:
[youtube]http://www.youtube.com/watch?v=6tJV6Zj69HY[/youtube]
I believe the script first verifies if the first part of the link is "http://www.youtube.com/watch?v=" and then takes the code (video ID) behind it. It is then processed into an embedded object according to the youtube embedding code (in this case, the HTML output of the script would be:
<object width="425" height="355"><param name="movie" value="http://www.youtube.com/v/6tJV6Zj69HY&rel=1"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/6tJV6Zj69HY&rel=1" type="application/x-shockwave-flash" wmode="transparent" width="425" height="355"></embed></object>
This way, the forum still has full control over what is embedded (ie. only Youtube videos and no harmful stuff) and people can embed Tubey's from here.
Actually, I think that would add a lot of functionality to a visually orientated forum as a Game Creators one.
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