While I subscribe to the New York Times' Green Inc Blog along with several other excellent ones and they are all accessible from my page, I always post information that I find particularly fascinating and this is one such article: http://greeninc.blogs.nytimes.com/2008/12/23/an-energy-solution-in-the-compressed-air/ The main argument against wind power (and for that matter solar or tidal power) has been consistency. Wind speeds, for example, vary at different times during the day, resulting in varying power generation. This article talks about Compressed Air Energy Storage, one of the new ideas for storing power to use it when required.
This is a very positive development because, if it is perfected, this would enable wind power to be used as an only power source instead of being a supplementary one. One mroe development to watch with fingers crossed.