For updates on the wind farm debate in the UK see the series of reports produced by NATTA, the most recent (volume V) being 'Windpower in the UK: into the millennium' (2002). They are compilations from the coverage in the NATTA newsletter RENEW (see http://eeru.open.ac.uk/natta/rol.html). This also covers the parallel debates on other renewables.
The British Wind Energy Association's web-site carries useful reports on developments: http://www.bwea.com.
For the anti-wind perspective see the Country Guardian web-site: http://ourworld.compuserve.com/homepages/windfarms/.
For an example of a local campaign against a wind farm see: http://www.cefncroes.org.uk.
For an example of a campaign to develop a local wind co-op in Wales see the Awel Aman Tawe (AAT) web-site: http://www.awelamantawe.co.uk/.
The story of the Danish wind co-ops is told at: http://www.windpower.dk/articles/coop.htm.