If you use Chrome, this might help.
1.Open your Google chrome browser.
2.On the corner right part of your browser, click the Customize / Control Google Chrome button
3.After clicking on the Settings, scroll down and click on Show Advanced Settings.
4.In the Privacy and Security section, click on Content Settings.
5.In the Content Settings section, scroll down and click on Images
6.In the Image section, select Do Not Show Any Images.
7.Images are now disabled in Google Chrome. Whenever you go to a website with an image, a blank space is placed in the space allotted for the image.
8.You are done. Enjoy.
But the question is a bit old, so maybe Google pulled that option out.