title: Need to create thumbnail from user submitted url like reddit/facebook
body: <p>I am pretty new to Django so I am creating a project to learn more about how it works. Right now I have a model that contains a URL field. I want to automatically generate a thumbnail from this url field by taking an appropriate image from the webite like facebook or reddit does. I'm guessing that I should store this image in an image field. What would be a good way to select an ideal image from the website and how can I accomplish this?</p>
  
  <p>EDIT- I'm trying to take actual images from the website rather than a picture of the website</p>