Web Filtering of Google/Yahoo Images
We are currently having a problem with the blocking of google / yahoo images.
The local category 'Images' has to be allowed otherwise it stops all images from displaying, such as the BBC website. We have denied local category 'Search Engines - Images/Video' for students, however can still access google/yahoo images.
Google doesn't display a different URL when viewing images so it is difficult to do a 'keyword' block or similar, as this would stop google all together.
Is there anyway to stop all search engine images?