http://umbra.nascom.nasa.gov/images/latest.html - latest ground- and space-based solar images in the SDAC archives.

ftp://umbra.nascom.nasa.gov/pub/images/current - GIF or PostScript representations of solar images via anonymous ftp.

http://cdsweb.u-strasbg.fr/astroweb.html - AstroWeb: Astronomy on the Internet.

http://sohowww.nascom.nasa.gov/cgi-bin/synop_query_form - SOHO Synoptic Database Search Engine query form.

http://sohowww.nascom.nasa.gov/cgi-bin/summary_query_form - SOHO Synoptic Database Search Engine summary query form.

http://adsabs.harvard.edu/abstract_service.html - The NASA Astrophysics Data System.

http://solar.nro.nao.ac.jp/ - The Nobeyama Radioheliograph : daily solar images at 17 GHz.

http://umbra.nascom.nasa.gov/batse/batse_years.html - CGRO BATSE solar flare database at the SDAC.

http://umbra.nascom.nasa.gov/yohkoh_archive.html - The Yohkoh Archive.

ftp://140.252.1.21/kpvt/daily - U.S. National Solar Observatory at Kitt Peak anonymous ftp directories.

http://www.bbso.njit.edu - Big Bear Solar Observatory WWW Page.

http://www.sao.ru - Special Astrophysical Observatory SD RAS in Karachaevo-Cherkesia.

http://julius.ngdc.noaa.gov:8080/production/html/GOES/ - GOES Space Environment Monitor.

http://www.ngdc.noaa.gov/stp/SOLAR/solar.html - The Solar-Terrestrial Physics division of the National Geophysical Data Center. Solar and Upper Atmospheric Data Services.

http://www.inasan.rssi.ru - INASAN Institute of Astronomy SD RAS in Moskow.

http://sohowww.nascom.nasa.gov/synoptic/ - The SOHO Science Planning daily solar images page : a variety of space- and ground-based solar imagery, including Nobeyama 17 GHz radio maps.

http://www.sec.noaa.gov/today.html - NOAA Space Environment Center recent solar H-alpha images, integrated soft X-ray fluxes, geomagnetic indices.

http://www.astro.ucla.edu/~obs/intro.html - Mt. Wilson Observatory 150-ft Solar Tower magnetograms, Dopplergrams, and "intensitygrams" in two photospheric lines, as well as white-light sunspot drawings.

http://vtt.sunspot.noao.edu/sunpic.html - Near-realtime, one-minute cadence H-alpha images from the U.S. National Solar Observatory at Sacramento Peak.

http://hiraiso.crl.go.jp/ - Hiraiso Solar Terrestrial Research Center of the Communications Research Laboratory (Japan): solar radio spectra, H-alpha images, geomagnetic data, digital ionograms, and a variety of other solar-terrestrial data.

http://www.lmsal.com/SXT/ - The Lockheed Palo Alto Research Laboratory SXT home page has even more current images from Yohkoh and a variety of optical and radio ground-based observatories..

http://mesola.obspm.fr/ - Meudon node of the French BASS 2000 solar data networked archive serves H alpha, Ca II K1v and K3, THEMIS magnetogram and dopplergram data, Nancay radioheliograms, and several other varieties of solar data..

http://www.lmsal.com/SXT/sxt_movie.html - Lockheed also serves a Yohkoh movies page that allows downloads in GIF, GIF movie, MPEG, and Javascript movie formats..

http://www.solar.ifa.hawaii.edu/mees.html - The Mees Solar Observatory of the University of Hawaii Institute for Astronomy, located on top of Haleakala: white-light, Ca II K, and Stokes polarimeter images.

http://www.hao.ucar.edu/public/research/mlso/mlso_homepage.html - The Mauna Loa Solar Observatory (MLSO) of the High Altitude Observatory (HAO): current prominence monitor and white-light coronagraph images and movies.

( http://www.hao.ucar.edu/public/research/mlso/chipftp.html ) - The Mauna Loa Solar Observatory (MLSO) - daily He I 10830 Å images as well.

http://www.drao.nrc.ca/icarus/www/sol_home.shtml - Daily solar 10 cm microwave flux measurements from Penticton, courtesy of the Dominion Radio Astronomy Observatory, National Research Council Canada.

http://www.sunspot.noao.edu/CORONA/ - The NSO Sacramento Peak coronal image and synoptic map representations of daily forbidden line observations.