Smart Youtube is a WordPress Youtube plugin that allows you to easily insert Youtube videos in your post, comments and in your RSS feed. The plugin is designed to be small and fast and not use any external resources.

From version 2.0 Smart youtube also supports playback of high quality videos, works on iPhone, produces xHTML valid code (unlike YouTube embed code)  and allows you to view videos in fullscreen.

The videos will be embedded in your RSS feed as well, and if this is not support by the reader you can choose to have video link and/or video preview screenshot displayed instead.

Example: httpv://www.youtube.com/watch?v=00000000
0000000 part is your video REF#