We know Google Images deploys framebuster busting techniques to prevent sites that use framebusters from sending the user directly to the site.

Yahoo does something similar.

For example, this picture of a flower on Yahoo Images is from flowershopsflowers.com/nature-flowers, which has framebusting JavaScript on the site.

Yahoo breaks the framebuster and places in the window below the image a message that reads:

This message really upsets those who use the framebusting script. These are webmasters who specifically dislike that the search engine is showing a higher resolution version of their image on the search engine as opposed to sending the user to the site to view and download the image.

Here is a picture:

A WebmasterWorld thread has some users calling this out right stealing:

Forum discussion at WebmasterWorld.