This is a browser plugin, which allows you to select a movie title on any webpage and send that movie directly to your Netflix queue.
Simply install the plugin, then highlight any movie title on the webpage, right click on it and select "CueThat" context menu. You will be asked to link your Netflix account upon first use.
Safari Users: drag this button to your Bookmark Bar.
IE Users: right click this button and choose Add to favorites CueThat Bookmarklet
You can use CueThat on your iOS mobile devices too. Follow these instructions to setup.