Some of my favorite links

 

CCD and Astrophotography

General Astronomy Links
Al Kelly's Astrophotos Sky and Telescope
Steve Cannistra's Astrophotography The Nine Planets
Philip Perkins Astrophotography Clear Sky Clock
Rob Gendler's Astroimaging STScI Digitized Sky Survey
  Paul Gitto Arcturus Observatory
Wolfgang Promper Astroimages http://www.messier.seds.org/
Russ Croman Astrophotography van den Berg Catalog
Astronomical Cameras: A Guide to Astrophotography Sharpless Catalog
  Barnard's Dark Nebulae
  Seiichi Yoshida's Comet Page
  Astronomy Resources for Kids