I want users to be able to copy and paste the link of something and, using oembed, paste it into a text box. From here I want to be able to identify the url and turn it into an oembed object or whatever you would call it. (e.x. Youtube Page=> URL=> textarea=> oembed=> embeded)
You can do it using the jquery oembed plugin:
http://code.google.com/p/jquery-oembed/
Hope this helps. Cheers