The question came up in a different forum about how to embed a youtube video.. you can actually embed video, audio, or images from a variety of sources such as youtube, vimeo, flickr, etc. When you start a thread of make a comment, you should see fields for embedded media, with a list of the third party media sites below the field. Each option below the body field, where you type your comment.
Each service is a little different, but with youtube, when you are watching a video, look to the right and you will see a field called "url" and another one called, "embed". Copy everything from the embed field into the embbed video field and it should work. Let me know if it doesn't!
ALSO, if you create video, have your images or audio creations you want to share, don't forget to do so in the Media Gallery. AGain, though, this is just for digital media that you create. If you want to start a conversation around media created by others and shared freely on the web, use the forum and embed the video in your post.

Chose a random youtube video. Embedded doesn't seem to work.
<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/asys1yIOnAI&hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/asys1yIOnAI&hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>
Could you just stay off my threads? I don't appreciate your comments.
I believe strongly in the Freedom of Speech, but that freedom is to say what you want (ie: the meaning of the message you are trying to convey) not how you want (ie: the words you choose in order to convey that message).