Glowing Safety Paper/Sticker Paper
Glow in the Dark Safety Sticker is made from flexible vinyl, with glow pigment coating applied on. Glow Stickers come with a self-adhesive backing. Glow stickers can be easily cut into any shape or size and stuck on any surface. It is also possible to write, draw or print on these glowing stickers, creating instant signs that glow in the dark.
http://coolglowstuff.com/ - Details

Celestron's "baby" Nexstar scopes
This group is mainly for owners of Celestron's "baby" Nexstar scopes - the 60mm and larger refractors, and reflectors under 8". Other scope owners also welcome. Membership may be "restricted" on Yahoo only to eliminate SPAMmers, approval is typically 1 day.
http://tech.groups.yahoo.com/group/BabyNexStar/ - Details

Stellarium
Stellarium is a free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope. It is being used in planetarium projectors. Just set your coordinates and go.
http://www.stellarium.org/ - Details

C2A Planetarium
C2A Planetarium Software allows you to build detailed views of stellar fields. An important objective of this software is to take into account the main catalogues available to professional and amateur astronomers
http://astrosurf.com/c2a/ - Details

Owl Observatory
The observatory is located on the grounds of the Kalamazoo Nature Center, which is recognized as one of the nation's best nature centers. Since 1960, the Nature Center has been inspiring people to care about the environment by providing experiences that lead them to understand their connection to the natural world
http://www.kasonline.org/owl.html - Details

RTGUI
Quickly find Planets, Messier Objects, Caldwell Objects, NGC/IC Objects, Named Stars, and > 2,500 Double Stars, by Constellation, Altitude, Magnitude, etc..
http://www.debunker.com/astro/rtguipage.html - Details

Stellaris
Stellaris is a comprehensive astronomy suite that runs on Microsoft Windows. View a simulation of the night sky and the solar system - including NGC objects. Browse collections of impressive astronomical images. Observe Jupiter's and Saturn's moons revolving around their planets.
http://www.stellaris-software.com/index.htm - Details

GIMP
GIMP features a great fullscreen mode
http://www.gimp.org/ - Details

Asteroid/Comet Connection Site

http://www.hohmanntransfer.com/news.htm - Details

Comet Magnitude Estimates By John E.Bortle

http://skytonight.com/observing/objects/comets/3304211.html - Details

Scope City
Scope City offers telescopes for astronomy & photography, spotting scopes for land and sea, binoculars for birding, outdoor, sporting events, and every purpose; as well as a vast collection of night vision equipment and microscopes for beginners or professionals.
http://www.scopecity.com/ - Details

Sky andTelescope
Sky andTelescope Interactive Sky Chart
http://skyandtelescope.com/observing/skychart/ - Details

Astroimagine Calculator
Little application to calculate the F/D (Focal Length/Aperture) ratio and resolving power of your telescope as well as the field of view and size per pixel covered by your CCD camera. It is also capable of calculating the effective focal ratio - useful for planetary astrophotography purposes.
http://astrosurf.com/astroimagine - Details

SATBUSTER
SATBUSTER for Windows is especially designed for satellite visual observers and trackers. Its users, mainly amateur astronomers, radio amateurs and satellite trackers, appreciate both the accuracy and the simple to use graphical interface.
http://www.satbuster.com/engmain.html - Details

CAS
The Calumet Astronomical Society, Inc. (CAS) is a 501(c)(3) not-for-profit corporation founded in 1975, and incorporated in 2000, for the purpose of pursuing the study of astronomy and promoting the education of of astronomy and space science. The CAS membership consists of amateur astronomy enthusiasts from the Northwest Indiana and southern Chicago metropolitan regions. Although most of the membership does not enjoy the luxury of dark tranquil skies from their back yards, the 200+ members
http://www.casonline.org/ - Details

AstroAlign 2.0
AstroAlign is a software program for unconventional (?) image processing of astronomical and other images. The program is free and may be used by anyone who finds it useful. However, read the disclaimer at the bottom of this page before you start using it.
http://www.arnholm.org/astro/software/astroalign/AstroAlign.htm - Details

Distant Suns
Distant Suns is one of the premier desktop astronomy programs
http://www.distantsuns.com/ - Details

cio of universal concepts
free vertual telescope
http://www.stellarium.org - Details

Astronomical software clock MAXCLOCK
The high-precision astronomical (software) clock displays various sidereal and solar time signals (for Greenwich and other selectable site), equation of equinoxes, Julian dates in UT1 and ET, Delta-T, Sun and Moon in aequatorial and ecliptic coordinates (milliarcsec-accuracy), and issues announcements for solstices, equinoxes, and Moon phases.
http://www.umark.de - Details

Buiding a solar scope
I thought I'd turn my reply into a separate page in case anyone is interested in making their own solar telescope. Just be sure to follow the instructions carefully and precisely and feel free to contact me for advice or specifics. Illustrations are forthcoming, as soon as I get them scanned.
http://www.stargazing.net/Astroman/Solarconst.html - Details