JPL Part Reliablility 
Guidelines for parts selection and space reliability.COTS parts used in Space applications.
http://parts.jpl.nasa.gov/Association RADECS 
RADiation and its Effect on Components and Systems. Updated information about RADECS association and RADECS conferences will be available on this site in English.
http://www.radecs.org/
Space Design Links 
Links on satellite cost, thermal and environmental design.
http://www.ssl.umd.edu/space/design.html
Communications Satellite Software 
SATSOFT is used for communication satellite antenna design, analysis, and coverage planning. Quickly assess antenna coverage and gain, conduct antenna sizing studies, develop shaped beam and multibeam antenna designs, and perform other satellite payload engineering tasks.
http://www.satsoft.com/distributors.htm
Discovery Program Documents 
Discovery guidelines and requirements documents. Good reference collection.
http://discovery.larc.nasa.gov/discovery/dpl.html
GAO Space 
Description of GAO Associates plus source of free code for space applications and support for aerospace.
http://www.gaoassociates.com
Radiation-effects.com 
Provide radiation effects services including measurements, data analysis, environment defintion, and technology assessment for space applications.
http://www.radiation-effects.com
Aerospace Systems, Concepts, and Analysis 
NASA's Langley Research Center in Hampton, Virginia. Includes organization, key personnel, mission, activities branches, and space-related bulletin boards.
http://discovery.larc.nasa.gov/
Manned Mission To Mars: Manned Mars Vehicle System Final Report 
An analysis of the viability of a potential manned mission to Mars.
http://www.geocities.com/CapeCanaveral/Galaxy/7191/
Space Mechanical & Thermal Engineering Group 
Design of space flight instruments, providing a range of services from conceptual studies to detailed design and analysis and the definition and management of tests.
http://www.sstd.rl.ac.uk/Mectherm
The Radiation Environment 
Radiation environment for space.
http://www.estec.esa.nl/wmwww/wma/Background/rad_env.html
Drag-free satellites. 
Experimental gravitational physics using drag-free satellites.
http://www.dragfreesatellite.com/
Space War 
Site exploring the past, present, and future of space warfare.
http://spacewar.netfirms.com
European Space Components Information Exchange System 
Facilitates European space industry to share information on satellite components
https://escies.org/
Space Environment and Effects Section, ESA 
Provides data and tools on radiation, debris and other effects on space systems in flight. Includes scientific articles and events.
http://www.estec.esa.nl/wmwww/WMA/
Software Engineering and Standardisation Section, ESA 
Provides documentation, tools and project news from the spacecraft software section of the European Space Agency.
http://www.estec.esa.nl/wmwww/EME/index.htm
Space Environments & Effects Program 
NASA's space environment program. Features overview, news, flight experiements, mathematical models and publications.
http://see.msfc.nasa.gov/
Astronautics and Spacecraft Design 
Offers an aerospace professor's comprehensive and updated collection of spacecraft design links.
http://ame-www.usc.edu/bio/mikeg/astromike/index.html
Applied Technology Space and Satellite Training 
Offers overview of courses provided in spacecraft design for engineers and scientists.
http://www.aticourses.com/
NASA Parts Selection List 
Provides catalogs and specifications for electrical, electronic, and electromechanical (EEE) parts to use in space systems.
http://nepp.nasa.gov/npsl/
Space Environment Links 
Offers comprehensive directory.
http://www.estec.esa.nl/wmwww/WMA/other.html
Spacecraft 
Weblog for Discussion of Spacecraft Design, Dynamics and Control, and News.
http://www.aoe.vt.edu/~cdhall/Space
Spacecraft Technology Center at Texas A&M University 
STC promotes commercially funded engineering research and technology development using the International Space Station (ISS) or other orbiting platforms as a test bed for developing and validating advanced spacecraft technology.
http://stc.tamu.edu
eclipse aerospace 
Add-ons for orbiter space flight simulator created for educational purposes and includes spacecraft, satelittes, interplanetary probes and surface bases. Also competing in the virtual x-prize.
http://www.freewebs.com/eclipseaerospace/
Rosetta Spacecraft Design 
The Rosetta mission is an interplanetary mission whose main objective is to rendezvous with and make in-situ measurements of comet 46 P/Wirtanen. Design drivers and requirements.
http://sci.esa.int/science-e/www/area/index.cfm?fareaid=13
Small Satellites Home Page 
Extensive collection of information on small satellites (nano-satellites and larger) and their uses.
http://centaur.sstl.co.uk/SSHP/index.html
Starnav 1 experiment mission web site 
Starnav 1 startracker experiment that flew on STS-107 Columbia mission.
http://starnav1.tamu.edu
SpaceWire UK 
Design services for the space industry, focusing mainly on SpaceWire, the new communications standard adopted by ESA and NASA for future missions.
http://www.spacewire.co.uk
NASA Lessons Learned 
NASA Lessons Learned Information System. Appears access is restricted to NASA and approved contractors.
http://www.nasa.gov/offices/oce/llis/home/
Slate - Where Satellites Go When They Die 
Describes the process of and planning for decommissioning and "parking" of geosynchronous satellites.
http://slate.com/id/2117519/