After HiRISE, now HiWISH.
Image your own spot on Mars and have it delivered to your desktop.
HiRISE stands for High Resolution Imaging Science Experiment and is managed by the University of Arizona. The HiRISE camera onboard the Mars Reconnaissance Orbiter is the most powerful one of its kind ever sent to another planet. Its high resolution allows us to see Mars like never before. Now comes HiWISH.
HiWish allows you to log in and select a spot on Mars as a suggestion for where the HiRISE instrument should take an image. If you don't have a particular location, you can use the HiWish site to browse around the planet, examine the locations of other data sets, and find a place that should be imaged. It will be put into their targeting database, and may get selected as an upcoming observation. Furthermore, the HiWish site allows you to track your suggestions and be notified when one of your suggestions gets taken.
Currently they have over 11,700 images in their catalog. Here are a few: