For example, to display an image of cnn.com on your site, add this in your HTML page:
Then add the following attribution somewhere on pages on which you display our thumbnails. This is all we ask for in return for providing this service for free.
You can also add a ‘size’ parameter to change the size of the thumbnail. Allowed sizes are 100, 120, and 200 (numbers refer to width in pixels). If omitted, size 100 is assumed.