Help:YouTube
How to embed youtube videos in wiki pages
General
<youtube>videoid</youtube>
The videoid can be found in the youtube url: http://www.youtube.com/watch?v=6gd1FvbcnL4
You can add <br /> to achieve line break if you don't want the video to be embedded in text.
So adding <br /><youtube>6gd1FvbcnL4</youtube><br /> to any wiki page should result in the display of the video like:
<youtube>6gd1FvbcnL4</youtube>
Options
<br /><youtube size="small">6gd1FvbcnL4</youtube><br />
<youtube size="small">6gd1FvbcnL4</youtube>
<br /><youtube size="medium">6gd1FvbcnL4</youtube><br />
<youtube size="medium">6gd1FvbcnL4</youtube>
<br /><youtube size="normal">6gd1FvbcnL4</youtube><br />
<youtube size="normal">6gd1FvbcnL4</youtube>
<br /><youtube size="big">6gd1FvbcnL4</youtube><br />
<youtube size="big">6gd1FvbcnL4</youtube>
<br /><youtube align="right" width="100" height="100">xYHsaDDSF</youtube><br />
<youtube align="right" width="100" height="100">xYHsaDDSF</youtube>