How to embed a You Tube into webpage

Question

Can anyone give some guidance on how to embed a You Tube video into your webpage?

Answer 1

Awesome!!! Worked out perfectly, thank you so much.
I don't mean to take advantage of your good nature, and willingness to help, but I do have a simular problem trying to insert the +1 button.  Have you heard that Google is giving favorable ranking advantages if you use their +1 button which is the take-off of the Facebook Like button.
I would like to add the google +1 button to my Front page (Index page) having watched many "You Tube" videos it appears to be easy enough. Needless to say, I am not having any luck working it out.
The actual Google +1 code is prepared for you. http://www.google.com/webmasters/+1/button/
As instructed I placed:  <g:plusone annotation="inline"></g:plusone>  in the "source page" where I wanted the google +1 logo to appear on my web page,
Then I placed the below code within the header of the "Source" page"
  <script type="text/javascript">
  (function() {
    var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true;
    po.src = 'https://apis.google.com/js/plusone.js';
    var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s);
</script>
I went back to the layout page, nothing, I went to preview, nothing, I even looked on the web browser, nothing.
Do you have any idea what I could be doing wrong??
Appreciate your help in advance, promise this is the last one.
Sincerely
Fraser