This is a list of exergaming groups on the web

Ning Sites

TwitFitter - http://www.twitfitter.com/group/exergames 

Facebook Sites

Exergame Evangelists - http://www.facebook.com/group.php?gid=15984925786&ref=ts

Exergames - http://www.facebook.com/group.php?gid=17000814272&ref=ts

LinkedIn Groups

Interactive Fitness and Exergame Network

Exergame Fitness USA

Websites

www.ucalgary.ca/exergaming

http://www.MachineDance.de

http://www.exergamefitness.com

XING Groups:

http://www.xing.com/net/myvitness/

Blogs

Using Technology for Fitness and Motivation (Richard)- http://gamercize.blogspot.com/

GamerSize Science-Quest for the Perfect ExerGame (Alasdair) - http://www.gamersizescience.org/

Exergame Lab @ SUNY Cortland (Stephen) - http://exergamelab.blogspot.com/ 

Exergaming Australia (Brett) - http://exergamingaustralia.com

FootGaming with FootPOWR (Judy) - http://footgaming.blogspot.com

Exergaming Evangelist's Soapbox (Ernie) - http://exergamingevangelist.blogspot.com

XRtainment Zone Updates  (Ernie)- http://xrtainmentzone.blogspot.com

GYMSUCKS -  http://www.gymsucks.com

Exergame Fitness USA (Tommy) - http://blog.exergamefitness.com | http://blog.activegamingusa.com

Motion Fitness (Ed) - http://www.motionfitness.com | http://blog.motionfitness.com

Sporle - http://www.sporle.de

Physical Education Teacher's Exergaming Resource - http://www.yourpeter.org/