WordPress Plugin: Youtube
This plugin is no longer supported. I recommend using Smart YouTube PRO instead, which I now also use on this site.
Download WordPress-Youtube-Plugin (zip)
Usage instructions:
Download the plugin, extract it to your wp-content/plugins directory and activate it just like any other wordpress plugin. Afterwards, you can include a youtube video on your posts or pages by writing this (without quotes):
["youtube" id]
You’ll find the necessary id in the address of the video. A typical address looks like this, the id is highlighted in bold: http://www.youtube.com/watch?v=8DHOZW_8OPk
Have fun!
Update:
A port of the plugin, currently supporting Youtube, Google Video, MyVideo and Clipfish