Userscripts.org is a sharing platform for scripts which modify the look and/or feel of websites. Such scripts usually manipulate the DOM-tree and CSS attributes of HTML documents. One particularly useful script for me is Google Image Relinker Mod. It rewrites the links from the result view of Google Image Search to point directly to the image file instead of the intermediary landing page.
To get the script working, follow the following steps:
.
Note: The links of the images in the search result list still point to the intermediate result site but the links of the images which are displayed when you hoover over the results, link to the actual files.