To embed a video from YouTube:
Go to the page where you watch the video. Under the video, click "Share".
A new set of options will open up. Click the "Embed" button.
This will generate some code for you to copy/paste into the box below. It will look something like this:
<iframe width="444" height="301" src="http://www.youtube-nocookie.com/embed/adeDb0BRMZY?rel=0" frameborder="0" allowfullscreen></iframe>
Copy/paste that text into the box below. Delete the part that says "http:" (shown in red in the example). You're done! We'll figure out the details.
Of course, if you want to include other text in addition to video, you can do that.
If you'd like to change the size of the video, feel free; just don't make it more than 445px wide. Leaving it the default size is fine, too.
If you'd like to embed a video from another source, please talk to us. You certainly can; we just want to make sure we've given you the right instructions.