Astronautix.com
Encyclopedia Astronautica, an encyclopedia of astronomy.
http://www.astronautix.com/

Astronomy.com
Astronomy magazine's website features eight core content areas: news, feature stories, observing, an image gallery, parent and teacher resources, Astro for Kids, a beginner's section, and the AstroShops.
http://www.astronomy.com/

Astronomylinks.com
Astronomylinks.com provides an index of astronomy and space related websites on the Internet.
http://astronomylinks.com/books/

Astrosociety.org/Mercury Magazine
Mercury Magazine, the official publication of The Astronomical Society of the Pacific, online.
http://www.astrosociety.org
http://www.astrosociety.org/pubs/mercury/

Batnet: Here Comes Sputnik
Personal commentary from enthusiast Mike Wright about Sputnik, its latest anniversary, and the space age.
http://www.batnet.com/mfwright/sputnik.html

BBC
BBC's, British Broadcasting Corporation, science/space site.
http://www.bbc.co.uk/science/space/

CNN.com
Technology/Space site
http://www.cnn.com/TECH/space/

CollectSPACE.com
CollectSPACE.com, a site dedicated to providing resources for space memorabilia collectors.
http://www.collectspace.com/

Google.com
Click below for Google's Web directory site for Sputnik.
http://directory.google.com/Top/Science/Technology/Space/Missions/Unmanned/Earth_Orbit/Sputnik/

MSNBC.com
Technology/Space site.
http://www.msnbc.com/

NASA
The official NASA Sputnik site honoring the 40th anniversary of the launch.
http://www.hq.nasa.gov/office/pao/History/sputnik/

The Houston Chronicle
"Space Chronicle" a space site by The Houston Chronicle
http://www.chron.com/content/chronicle/space/

The New York Times
A special presentation of The New York Times on America Online including articles and photos from the first week following Sputnik's launch, coverage of the U.S. response and the early days of the space race, and a directory of related websites.
http://www.nytimes.com/partners/aol/special/sputnik/

Skypub.com
Sky and Telescope magazine's website.
http://www.skypub.com/

SPACE.com
SPACE.com, owned by Gannett Company and NBC, offers news, information, education, entertainment, games, science fiction and a kids' channel.
http://www.space.com/

SpaceDaily.com
SpaceDaily.com is the leading industry space portal. Its news service brings together industry professionals, space scientists and policy makers the world over.
http://www.SpaceDaily.com/

Spaceref.com
"Discover Something New Everyday," at Discovery.com and Spaceref.com's joint online resource for students, professionals and space buffs everywhere.
http://www.spaceref.com/

Universe Today
Site provides and overview and links to sites for more detail on fast-breaking and important news.
http://www.universetoday.com/