You may use the ***AnimAll*** add on to do it. Go to *User Preferences* (<kbd>Ctrl</kbd>+<kbd>Alt</kbd>+<kbd>U</kbd>) and activate it.
[![enter image description here][1]][1]

Here are some examples how to use it:

 - http://blender.stackexchange.com/questions/36748/how-do-you-animate-image-texture-materials-in-blender-cycles-with-keyframes
 - http://blender.stackexchange.com/questions/18363/animating-eye-texture-in-a-head-mesh
 - http://blender.stackexchange.com/questions/24251/how-to-create-motion-trail-in-cycles

  [1]: https://i.sstatic.net/wZjLg.jpg