American Astronautical Society
   Offers society overview, news, publications, schedule of events, member services and scholarship information.
   http://www.astronautical.org/

Association of Space Explorers
   Organization and activity overview of an international non-profit professional and educational organization of more than 250 individuals who have flown in space.
   http://www.space-explorers.org/

Australian Space Research Institute
   Non-profit organization devoted to space technology in Australia. Includes overview of its main research projects and Australia's space activities in general.
   http://www.asri.org.au

Austrian Society for Aerospace Medicine
   Biomedical research of spaceflight physiology, medicine, and life sciences. Includes project, member and organizational information.
   http://members.aon.at/asm-austrian_soc_f_aerospace_medicine/

British Interplanetary Society
   Organization devoted to supporting and promoting the exploration of space and astronautics. Overview of publications and events, contact and membership information.
   http://www.bis-spaceflight.com/

CSIRO
   Australian office for Space Science and Earth observation. Provides project information, organization overview and news.
   http://www.cossa.csiro.au/

Center for Orbital and Reentry Debris Studies
   Contains information in the areas of space debris, collision avoidance, and reentry breakup.
   http://www.aero.org/capabilities/cords/

Committee on Earth Observation Satellites (CEOS)
   Offers newsletters, events and publications of an association of Space Agencies responsible for Earth Observation for peaceful purposes.
   http://www.ceos.org

Committee on Space Research
   Overview of the organization, events and publications of COSPAR, an organization created by the International Council for Science and dedicated to the scientific uses of space flight.
   http://www.cosparhq.org/

Earth and Space Foundation
   Provides comprehensive info on expeditions, projects, awards of a charity in the UK for Space exploration and Earth preservation.
   http://www.earthandspace.org

European Low Gravity Research Association
   Contains organization overview, membership information, events and newsletters of ELGRA, an international association of European scientists.
   http://www.elgra.org

Eurospace Foundation
   Provides overview of space camp, expositions and outreach activities of a Belgian non-profit organization promoting the benefits and challenges of space science and technology.
   http://195.13.10.37/UK/index.htm

Forum for Aerospace Engineers
   Technical support forums and mutual help system for engineering professionals, hosted by Eng-Tips.
   http://www.eng-tips.com/gthreadminder.cfm/lev2/4/lev3/31/pid/31

Foundation for International Development of Space
   Overview of the organization and how to apply for its grants and prizes.
   http://www.finds-space.org/

High Frontier Organization
   Organizational overview, events and documentation of a foundation in US devoted to protection of USA against ballistic missile attacks from Space.
   http://users.erols.com/hifront/

International Astronautical Federation
   Comprehensive source of information about the international space-advocacy organization plus news and event information.
   http://www.iafastro.com/

International Charter Space and Major Disasters
   Provides information on the charter and updated data and images from recent Earth disasters by an association of Space Agencies offering space data support to those affected by major natural or man-made disasters.
   http://www.disasterscharter.org/main_e.html

International Society for Gravitational Physiology
   Contains brief description of events, prizes and links to a journal of a gravitational physiology research association.
   http://www.isgp.org/

International Space Agency
   Provides overview of goals and projects of an association seeking international status as a space agency.
   http://www.international-space-agency.org/

International Space Business Council
   Provides comprehensive information on space industry profiles, directories and forums for space companies.
   http://www.spacebusiness.com/

Living Universe Foundation
   Overview, member's forum and newsletter of an association to preserve life on Earth, and to establish a migratory path for Earth life to spread through the galaxy.
   http://www.luf.org

LunaCorp
   Includes project and organization of an association promoting exploration of the Moon.
   http://www.lunacorp.com

Mars Prize
   Providing details of project to raise funds for a prize for making missions to MARS.
   http://www.marsprize.org/

NASA Institute for Advanced Concepts
   Overview of organization and projects by an association of universities. Focus on revolutionary concepts for architectures and systems for space.
   http://www.niac.usra.edu/

NASAWatch.INFO
   A forum that promotes a critical view of NASA. Articles and news with reviews by the forum.
   http://www.nasawatch.info

NSS Chapters
   Resources for chapters of the National Space Society including contact points and news.
   http://www.nsschapters.org/

National Institute for Aerospace Technology (INTA)
   Spanish R&D Institute. Provides overview of services, links to Spanish aerospace industry and documentation.
   http://www.inta.es/includes/idiomas.asp?i=en&p=/index.asp

National Space Society
   Comprehensive overview with newsletters, member forum and activities of an US association to "advance the day when people will live and work in space".
   http://www.nss.org

National Space Society of Australia
   Provides news, organizational and project facts about an association of space enthusiasts.
   http://nssa.com.au/

ProSpace
   Comprehensive news and overview of the a lobbying organization in USA dedicated to "access to Space for all".
   http://www.prospace.org/

Satellite Industry Association
   Contains overview and membership forum of a communications satellite industry trade organization in USA.
   http://www.sia.org/

Society of Satellite Professionals International
   Provides comprehensive membership and organization info for a professional career development organization in the field of satellite communications. Includes areas reserved for members.
   http://www.sspi.org/

Space Access Society
   Newsletters and event listings of an organization that promotes cheaper access to space.
   http://www.space-access.org

Space Entrepreneurship Network
   Links to space entrepreneurship news, ventures, advocacy organizations, commentary and a forum by private space entrepreneurship advocates.
   http://www.spaceentrepreneurship.net

Space Frontier Foundation
   Offers comprehensive news, projects and organization overview of an organization advocating cheap access to Space and rapid human colonization of Space.
   http://www.space-frontier.org

Space Future
   A forum promoting access to space for all. Includes comprehensive space tourism, newsletters and document resources.
   http://www.spacefuture.com/

Space Policy Project
   Resource for civil and military space issues provided by the Federation of American Scientists, offering a wide range of policy and analysis documents and relevant links.
   http://www.fas.org/spp/

Space Studies Board
   Contains bulletins and reports of an association of the US National Academy of Sciences offering advice on space science and its applications.
   http://www7.nationalacademies.org/ssb/

Space Studies Institute
   Provides organization facts, research papers, space art, product catalogs of an association aiming at providing energy from Space.
   http://www.ssi.org/

Space-Talk
   Provides message forums about space, astronomy and related topics.
   http://www.space-talk.com

Space.com Forum
   Message board for discussions related to space and astronomy.
   http://uplink.space.com/ubbthreads.php

SpaceConnection
   Contains overview of the training and certification programs for space professionals by an association promoting space flight.
   http://www.spaceconnection.org/

SpaceTalk
   A student organization at the University of North Carolina at Chapel Hill, USA, advocating the human exploration of space. Includes news, forum and member area.
   http://www.unc.edu/space

Spacefleet
   Offers forum and news by a group of space flight enthusiasts.
   http://www.spacefleet.org.uk

Students for the Exploration and the Development of Space
   Comprehensive overview with newsletters, forums, projects facts of a worldwide student space organization.
   http://www.seds.org

The Canadian Space Society
   Contains newsletters, forum and project information of a space advocacy group.
   http://www.css.ca/

The Mars Club
   Offers news and events of an association of explorers of the Martian and Mars-analog environments.
   http://www.mars-club.org/

The Moon Society
   International educational and scientific foundation for scientific study and development of the moon.
   http://www.moonsociety.org/

The OURS Foundation
   Provides overview of an arts and astronautical organization. Organizers of the Cosmic Dancer Sculpture and Ars Ad Astra space art projects on the Mir space station.
   http://www.ours.ch

The Planetary Society
   Offers overview, events, news and publications of a large nonprofit organization that promotes exploration of the solar system and the search for extraterrestrial life. Includes merchandising and links to affiliates.
   http://planetary.org

The Radio Amateur Satellite Corporation
   Offers facts, news, events information plus organization overview, articles, and member resources of AMSAT.
   http://www.amsat.org/

The Space Foundation
   Provides organization overview, projects, events, grants and prizes of a non-profit organization to advance space exploration, development, use and education.
   http://www.spacefoundation.org

Utah Space Association
   Provides information about the activities of the Utah chapter of the National Space Society in USA. Offers subscription to newsletter and related space links.
   http://www.utahspace.org/

X Prize Foundation
   Provides comprehensive updated facts on prize rules, activities, photos, merchandising and educational support of an association offering ten million US dollars to the builders of the first private space passenger craft.
   http://www.xprize.org/