ACES – LaSPACE/LSU/SU
http://laspace.lsu.edu/aces/index.html

AHAB – Auburn University Student Space Program (Alabama)
http://www.space.auburn.edu/ahab/

 AMSAT-France – F6FAO
http://ballon.amsat.free.fr/

ANNUAL DUTCH BALLOON FOX HUNT
http://www.ballonvossenjacht.nl/

ANSR - Arizona Near Space Research
http://www.ansr.org/
Ballooning@yahoogroups.com to post a message
Ballooning-subscribe@yahoogroups.com to subscribe

ARBONET – Amateur Radio Balloons over North Texas
http://www.arbonet.net/
ARBONET@yahoogroups.com to post a message
ARBONET-subscribe@yahoogroups.com to subscribe

ARTOB – Amateur Radio Transponder on Balloon (DLØART – Germany)
http://www.muenster.org/darc/artob/homebale.htm

ASTRO – Atmospheric and Space Threshold Research Oklahoma
http://astro.okstate.edu/

BALLOON V1.0 - N9OYP (California)
http://vpizza.org/~jmeehan/balloon/

BASE - Balloon Assisted Stratospheric Experiments (DePauw University)

http://www.depauw.edu/acad/physics/base/pages/links.asp

BEAR - Balloon Experiments with Amateur Radio (Alberta)
http://www.sbszoo.com/bear/

BEAR – Balloon Experimentation and Research (Alaska)
http://www.bear.437am.com/

BLT - South Texas Balloon Launch Team (W5ACM)
http://www.qsl.net/w5acm/

BOI - Balloons Over Idaho
http://www.qsl.net/kc7nax/

BOREALIS - Montana Space Grant Consortium
http://spacegrant.montana.edu/borealis/

CAP-N-SPACE – Civil Air Patrol (Kansas City)
http://www.capnspace.org/

CLUB SCIENCES ESPACE - lycée Baggio Solar Balloon Club F6KTN/F6AGV (France)
http://ballonsolaire.free.fr/

CNNSP – Central Nebraska Near Space Program
http://www.cnnsp.org/

COPERNICUS-PROJECT - Stowarzyszenie Copernicus Project (Poland)
http://www.copernicus-project.org/ 

DARC P56 SSTV – Deutschen ARC (Germany)
http://www.ballonprojekt.de/

DART -  Deployed Amateur Radio Technology
Near Space Exploration Group (Oklahoma)
http://www.nearspaceexploration.org/

DREAMS – Columbus High School Space Program (Georgia)
http://dreams.columbus2space.org/

EOSRED - EDGE OF SPACE  Research ,Experiments and Developments (Maine)
http://groups.yahoo.com/group/EOSRED/
EOSRED@yahoogroups.com to post a message
EOSRED-subscribe@yahoogroups.com to subscribe 

EOSS - Edge of Space Sciences (Colorado)
http://www.eoss.org/
EOSS@yahoogroups.com to post a message
EOSS-subscribe@yahoogroups.com to subscribe

ES-OS - Experimental Sub-Orbital Society (Colorado)
http://www.geocities.com/ke0vh/ESOS
(ES-OS_Launch - underlining hides the underscore)
ES-OS_Launch@yahoogroups.com to post a message
ES-OS_Launch-subscribe@yahoogroups.com to subscribe

EXPLORER POST 632 – NASA Glenn Research Center (Ohio)
http://vmw2.grc.nasa.gov/post632/
http://explorersposts.grc.nasa.gov/post632/

GROSSE POINTE ACADEMY – Solar lift to high altitude
http://mail.gpacademy.org/~rochter/default.htm   

HABET - High Altitude Balloon Experiments in Technology (Iowa State Univ)
http://www.sscl.iastate.edu/
http://www.sscl.iastate.edu/?q=node/4

HAPB – High Altitude Photographic Balloon (Texas)
http://www.photoesque.com/HAPB/

HamBONE - Ham Balloons Over New England
http://frodo.bruderhof.com/hambone/index.html and http://frodo.bruderhof.com/ka2qpg/thinair/
Ham-BONE@yahoogroups.com to post a message
Ham-BONE-subscribe@yahoogroups.com to subscribe

HB Minnow – N4TXI
http://www.garydion.com/

High Altitude Glider Project - (Vancouver, B.C.)
http://members.shaw.ca/sonde/index.htm
http://artvb.oatmeal.dhs.org/

HIBAL – Wright State University (Ohio)
http://www.cs.wright.edu/balloon/index.php/Main_Page

ICARUS – Robert Harrison, M6RJH (UK)
http://www.robertharrison.org/index.php?option=com_content&task=view&id=25&Itemid=78

ILMARI - Artjarvi Telecommunications Society (Finland)
http://www.viestikallio.fi/ilmari/

LARG - Loudoun  Amateur  Radio  Group (Virginia)
http://www.k4lrg.org/Balloon/index.htm

LPSU – Portland State University
http://web.cecs.pdx.edu/~lpsu/

MABEL - Michigan Area Balloon Experimental Launch
http://www.qsl.net/k8uo/UM201.htm

MECSAT – Medgar Evers College – City University of New York
http://nrts.mec.cuny.edu/mecsat/

MnSGC BALLOONSAT – Minnesota Space Grant Consortium (Univ. of Minn.)
http://www.aem.umn.edu/msgc/BSAT/index.html

NevadaSAT - Nevada Space Grant Student High-Altitude Ballooning
http://www.unr.edu/NevadaSat/BalloonSats/index.html

NOVA – Cambridge University Spaceflight (UK)
http://www.srcf.ucam.org/~cuspaceflight/

N-SERT – University of Alabama (Tuscaloosa)
Near-Space Engineering Research & Technology
http://nearspace.eng.ua.edu/

NSS - Near Space Sciences (Wisconsin)
http://www.qsl.net/wb9sbd/educators.html

 NSTAR - Nebraska Stratospheric Amateur Radio (N9XTN)
http://www.nstar.org/

NSV - Near Space Ventures, Inc. (Kansas City)
http://nearspaceventures.com

NTEXBP – North Texas Balloon Project
http://www.ntexbp.org/

ORB - Oklahoma Research Balloons
 http://members.cox.net/hhm_74775/orb/
oklahoma_research_balloons@yahoogroups.com to post a message
oklahoma_research_balloons-subscribe@yahoogroups.com to subscribe

OZ2CPU - Thomas Scherrer Balloon High altitude GPS telemetry project (Denmark)
http://webx.dk/bal/
http://webx.dk/index.htm

PAMPERO/AUSTRO/CORDOBA - Near The Space Border (Argentina)
http://www.qsl.net/lw2dtz/globoeng/

PROJECT ELIJAH - Milwaukee School of Engineering (Wisconsin)
http://people.msoe.edu/~piggottc/
http://people.msoe.edu/~piggottc/Elijah%203%20Mission%20Report.htm

PROJECT TRAVELER - Reno County Kansas Amateur Radio Association
http://www.rckara.org/index.php?ID=41
(Project_Traveler - underlining hides the underscore)
Project_Traveler@yahoogroups.com to post a message
Project_Traveler-subscribe@yahoogroups.com to subscribe

PRSGC – Puerto Rico Space Grant Consortium
 http://prsgc.aprspr.net/

REACH FOR SPACE – Perryton High School (Texas) (N5IS & K5IS)
http://almostangels.org/balloons/

SimSat – NASA Goddard Space Flight Center (N8PK - Maryland)
http://www.patkilroy.com/simsat/ 

SimSAT – AMRAD (Portugal)
http://www.amrad.pt/lancamento_cinelsat2.php 

SkyQuest - (Massachusetts)
http://www.geocities.com/n1ltv/sqpage.htm 

SSOK – Sky Science Over Kansas (WBØDRL)
http://www.petesias.com/balloons.htm

SUNTRACKER - flying from western Ohio and eastern Indiana
http://www.suntracker.eng.wayne.edu

SURFING SATELLITES – (Ohio)
www.surfingsatellites.org

TVNSP - Treasure Valley Near Space Project (Idaho)
http://www.tvnsp.org
tvnsp@yahoogroups.com to post a message
tvnsp-subscribe@yahoogroups.com to subscribe

UNDHABP - University of North Dakota High Altitude Balloon Project
http://balloons.space.edu/habp/
Send 'subscribe balloons' (in the body of the message) to majordomo@space.edu

UX – University of Tennessee Amateur Radio Club
http://www.utarc.org/

 VWS - Vienna Wireless Society (Virginia)
http://www.viennawireless.org/balloon/index.php

WB8ELK – Bill Brown (Huntsville, AL)
http://www.wb8elk.com/