West Bridgford Eco-House Group: http://www.wbecohouses.blogspot.com/
Run an Eco-House open day trail. These guys seem to know what they are doing - a well known eco-house architect is involve. They have a good links page for retrofitting
The Meadows - important project: http://www.climate-em.org.uk/news/item/royal-approval-for-the-meadows/
East Midlands Cycling Forum - have a good events calendar:
http://www.pedals.org.uk/east_midlands_cyclists_forum
Amplified Leicester - run interesting green events: http://ampleic.ning.com/
Green Power: http://www.partnershipcouncil.co.uk/index.php?/projects/green_power_team
(good video for this )
