Quoting Pictures
Please do not quote pictures. Doing so can eat up the bandwith for the person that is hosting the image you see, and it eats up huge chunks of the viewing page.

Hotlinking
You should never link directly to the image on another site. That is called hotlinking and stealing bandwith. If you have any questions, or aren't sure if what you're doing is hotlinking, please read up both here and here.

Instead of hotlinking you will need to copy the picture to your computer, upload it to your own image hosting service (flickr, photobucket, etc.), and then upload it to CC from there. It's more work, but better karma as long as you're following copyright law.