Here you find some links to sites I like, mostly private sites. Also you will find some links to - in my mind - useful software and a list of books worth reading. There are also links to commercial sites. This does not mean an endorsement of any kind, nor does it state an advertisement or warranty of any kind. A link in here means that I find the site use- and resourceful and/or the product worthwhile looking at.

Astronomy sites

• The World at Night - simply stunning night pictures
• Astronomers without Borders - One People, one Sky
• Antares - Lower Austrian Public Observatory - I am member of this association
• International Dark Sky Association - It is way to bright out there!
• Stargazer Observatory - A  private site in upper Austria
• Wiener Arbeitsgemeinschaft für Astronomie
• Astronomy Picture of the Day
• Bernhard Hubls private page
• Manfred Washuber's private site
• Werner Pribils private page
  
• Homepage of Dieter Beer
• Homepage of Ingmar Werner
  
• Astronomie.de - A very nice german Astro Forum
• Our Dark Skies - an US astronomy forum
  
• CfA News
• The NGCIC Project - Searchable NGC Database with pictures

Software Sites - Software I personally use

• DeepSkyStacker - easy to use Stacking for free
• THELI - data reduction at its best
• AstroArt - Astronomical Image Processing (and Acquisition)
• Registax - Avi Stacking and Planetry Imaging
  
• Cartes du Ciel - quite good planetarium software
  
• PHD Guiding - very good guiding software
• Deepsky - for Observation Planning
  
• The Gimp - please implement GEGL faster!!! - still only 8 bit Image processing, but open source

Literature

• "The Cosmic Perspective" by J. Bennett et al. (german Version "Astronomie", edited by Harald Lesch)
• "Burnhams Celestial Handbook" by R.J. Burnham jr.
• "Digitale Astrofotographie" by A. Martin et al. (german)
• "Illustrated Guiide to Astronomical Wonders" by R.B. Thompson et al.