Links
Minor Planet & Comet Ephemeris Service
http://www.cfa.harvard.edu/iau/MPEph/MPEph.html
Asteroids - Dynamic Site
http://hamilton.dm.unipi.it/astdys/
Near Earth Objects - Dynamic Site
http://unicorn.eis.uva.es/neodys/
Minor Planet Checker
http://scully.cfa.harvard.edu/~cgi/CheckMP
NEO & Comet Checker
http://scully.cfa.harvard.edu/~cgi/CheckNEOCMT
Unnumbered periodic comets index
http://jcometobs.web.fc2.com/punnum.htm
Minor Planet Normal Positions Service for Astrometry
http://www.cfa.harvard.edu/iau/VideoObs/VideoNormalPlaces.html
International Occultation Timing Association (IOTA)
http://www.lunar-occultations.com/iota/iotandx.htm
Occultation Section of the Royal Astronomical Society of New Zealand
http://occsec.wellington.net.nz/
SAO/NASA ADS Paper Search Engine
http://adsabs.harvard.edu/abstract_service.html
Seiichi Yoshida's Web Site on Comets
http://www.aerith.net/
Gerhard Dangl's Video Exposure Time Analysis
http://www.dangl.at/ausruest/vid_tim/vid_tim1.htm
Gerhard Dangl's Video Camera Comparison Images
http://www.dangl.at/ausruest/cam_comp/cam_comp.htm