Astronomical and Space Organization

• AAS Solar Physics Division
• American Astronomical Society
• Astronomische Gesellschaft
• Canadian Astronomy Data Centre International Astronomy Meetings
• International Astronomical Union
• Jet Propulsion Laboratory
• Mountain Skies Astronomical Society
• National Aeronautics and Space Administration - NASA
• Solar News

Literature Services

• Abstract service of the Astrophysics Data System
• Astronomy & Astrophysics abstracts at CDS
• Astronomy & Astrophysics Online
• Astrophysical Journal Online
• Astrophysics and Space Science
• Nature
• PASP abstracts at CDS
• Proceedings of SPIE The International Society for Optical Engineering
• Solar Physics

Manufacturers of Optical Instruments, Cameras and Computers

• Andover Corporation
• Apogee Instruments
• Baader Planetarium
• Barr Associates
• Coronado Filters
• Daystar Filters
• DELL Computers
• LaVision
• LINOS Photonics
• L.O.T.-Oriel GmbH
• Mediastore
• Melles Griot
• Photometrics
• Queensgate Instruments
• Rolyn Optics Company
• Santa Barbara Instrument Group
• Scientific Imaging Technologies (and PixelVision)
• SDSU Astronomy CCD Laboratory
• Sensors Unlimited
• Silicon Mountain Design--Dalsa Dalstar
• Sun Microsystems

Solar Observatories and Research Groups

• Caltech Solar Observatory
• Culgoora Solar Observatory
• Global Oscillation Network Group
• High Altitude Observatory
• Instituto de Astrofisica de Canarias
• Kiepenheuer-Institut für Sonnenphysik
• Learmonth Solar Observatory
• Udaipur Solar Observatory
• Astrophysikalisches Institut Potsdam
• Lomnicky Stit Observatory -- Slovakia
• Lockheed Martin - Solar and Astrophysics Laboratory
• Mees Solar Observatory
• Mount Wilson Observatory
• National Optical Astronomy Observatories
• National Solar Observatory
• National Solar Observatory (Kitt Peak)
• National Solar Observatory (Sacramento Peak)
• San Fernando Solar Observatory
• Solar and Heliospheric Observatory
• Universitäts-Sternwarte Göttingen
• Wilcox Solar Observatory
• Osservatorio Astronomico di Roma (Italian)
• Transition Region and Coronal Explorer - TRACE
• The 150-Foot Solar Tower at Mt. Wilson Observatory
• Solar and Heliospheric Observatory - SOHO
• Hinode (Solar-B)
• STEREO -- 3-D View of the Sun

The Sun on the WWW

• NGDC Solar Data Services -- General
• Solar-Geophysical Data Reports (PDF version 2000-)
• Daily Total Solar Irradiance
• Estacion de Observacion Solar - Universidad de Sonora
• INTER-SOL Programme (ISP) Daily Sunspot Activity
• Marshall Space Flight Center - Solar Physics
• National Solar Observatory Educational and Outreach Resources
• Solar and Stellar X-Ray Group - Harvard-Smithsonian Center for Astrophysics
• Solar Data Analysis Center at NASA Goddard Space Flight Center (Latest Solar Images)
• Space Environment Center
• Sunrise and Sunset
• Sunspot Numbers
• ASP Universe in the Classroom: Our Solar Connection
• NASA Solar Week
• History of Solar Physics
• Space Weather Summary