If you were to drag an image over the Google text box in Google images [http://images.google.com/], you will do a kind of reverse search on the image ... that is, you can find other sources for the same image and maybe find other images related to your search seed image. Give it a try. BUT ... for images on OCC, you will have to save it to the HD and drag the saved image over. On other sites, if you do 'view image', then drag the image to the text box area, you will get search results.