University of St. Andrews (UK)
University of St. Andrews: Hipparchus of Rhodes
This University of St. Andrews site contains biographical information as well as pictures and references for the Greek Mathematician Hipparchus. Click on "Full MacTutor biography" for the biography and on the picture for additional images.
Other
Fermat's Last Theorem Blog: Hipparchus of Rhodes
Brief biography of the Greek astronomer Hipparchus of Rhodes. Also contains one illustration and a couple of reference links.