MicroObservatory is an online telescope run by the Harvard-Smithsonian Center for Astrophysics. Publicly funded through NASA's Science Mission Directorate, it is free to use. Geared towards amateurs, MicroObservatory gives the general public the ability to view the cosmos through their network of small, robotic telescopes. After your request is submitted, a link to the CCD image is emailed to you within 48 hours.
MicroObservatory states that their telescopes are located in Massachusetts, Arizona, or vaguely “another site." They are all three foot long reflecting telescopes with 5.5 inch mirrors. They are not traditional telescopes in the sense that they lack eyepieces. Instead, they are optimized for CCD photos, with CCD cameras in place of the eyepieces that take 650 x 500 pixels pictures. You request an image through one of the “Guest Observer Activities": Galileo, Colorful Cosmos, Black Hole Search, Galaxies Galore, or Telescope as a Time Machine.
“Guest Observer Activities" include recommendations for types of objects to image and suggest projects of which one’s images would be useful. For instance, in the Galileo activity you take images of the same celestial objects of which Galileo observed and sketched: the Orion Nebula, the Beehive Cluster, Venus, our moon, Jupiter’s moons, Saturn, The Milky Way, and Pleiades. You then compare the images taken from the modern telescopes to the sketches Galileo made based on his observations from the new, rudimentary telescopes that had just been invented. As with all activities, the MicroObservatory Image Processing Software is available as a free download, allowing you to colorize and enhance your requested photos.