Youtube has a new feature for embedded videos: Watch It Later. If you have a Youtube account (you should) and your on a site that has an embedded Youtube video on it, the player has a plus symbol on the bottom right. Perhaps you’re in a situation where you would like to view the video and another time; perfect, click the “Watch Later” button and that video will be available to you the next time you go to Youtube. In order to find the videos you added to your “Watch Later” queue, click your account name in the upper right corner of Youtube’s page, got to “My Videos” and on the left, you should see an option for “Watch Later”. This new feature will only work with videos that have been embedded with the new iframe format Youtube is using.
Speaking of that, have you noticed the new iframe format Youtube is using for embedding videos. If not, take a look at this code:
<iframe title=”YouTube video player” width=”640″ height=”390″ src=”http://www.youtube.com/embed/o0N7oHBnyTM” frameborder=”0″ allowfullscreen></iframe>
That’s it, that’s the whole embed code now. Notice it begins with “iframe….”. Be mindful of iframes. Facebook is also going into using iframes instead of HTML. That means, all of you social networkers out there that are using FBML for their pages on facebook, better start learning about iframes soon.

