• An extensive list of resources in astronomy

Databases:

• ADS Home Page
• ADS Abstract Service
• ADS Article Service
• ADS Catalog Service
• CDS catalogues
• SIMBAD - Centre de Données astronomiques de Strasbourg
• StarWorlds information system
• Astrosearch - Search for astronomy related persons, institutes, or addresses
• Hubble Space Telescope - European Coordinating Facility
• International Virtual Observatory Alliance
• Astrophysical Virtual Observatory
• International Astronomy Meetings
• Physics Conferences On-Line
• Physics Jobs On-Line
• ARIBIB - Bibliographical Database for Astronomical References
• ARICNS - Database for Nearby Stars
• The Extrasolar Planets Encyclopedia

Journals:

• Astronomy and Astrophysics
• Astronomy and Astrophysics Supplement Series
• The Astrophysical Journal
• The Astronomical Journal
• PASP
• MNRAS
• SISSA preprint archive
• Bulletin of the American Astronomical Society
• Astrophysics and Space Science
• New Astronomy
• New Astronomy Reviews
• IAUC- International Astronomical Union Circulars
• IBVS - Information Bulletin on Variable Stars
• Baltic Astronomy

General:

• IAU - International Astronomical Union
• EAS - European Astronomical Society
• AAS - American Astronomical Society
• ESO - European Southern Observatory
• ESA - European Space Agency
• GAIA project
• IPHAS
• NRAO VLA Sky Survey
• Space Telescope Science Institute
• Lunar and Planetary Institute
• SkyView
• Astronomy Picture of the Day

The North:

• NOT- Nordic Optical Telescope
• Lund Observatory
• Tuorla Observatory
• Helsinki Observatory
• Uppsala Astronomical Observatory
• Aarhus Astronomy Group
• Institute of Theoretical Astrophysics (Oslo University)
• Copenhagen Theoretical Astrophysics Center
• Copenhagen University Observatory
• Astronomy in Lithuania
• Riga Astronomical Observatory
• VIRAC - Ventspils International Radio Astronomy Centre

Local links:

• Tartu Old Observatory