If you are in the UK, you may be particularly interested in this post. But even if you are not, you might enjoy this vision statement by a group there that is working together on simple/organic/missional/churches:
All over the UK more and more people are exploring what it means to be Disciples of Jesus Christ and how we live this out together in a way which will impact the communities around us. Some are involved in 'transitioning' more traditional/inherited models of Church to incorporate a more missional/organic vision. Others are 'pioneering' new forms of Church amongst their family, friends and communities.
You can read more about their efforts at their website: http://www.simplechurch.co.uk/.