Shortcodes allow you to easily and safely embed media from other places in your site. With just one simple code, you can tell WordPress to embed YouTube, Flickr, and other media.
Enter a shortcode directly into the Post/Page editor to embed media. For specific instructions follow the links below.
Available shortcodes are: [archives], [audio], [blip.tv], [dailymotion], [digg], [flickr], [googlevideo], [scribd], [slide], [slideshare], [soundcloud], [vimeo], [youtube], [polldaddy], and [wpvideo (VideoPress)].
For example, here is a YouTube video:
The shortcode to embed this video is: