There have been a number of articles I have read recently:

http://www.csmonitor.com/2009/0310/p09s01-coop.html

http://austin.bizjournals.com/austin/stories/2009/03/09/daily9.html?ana=e_du_pub

http://blogs.lifeway.com/blog/edstetzer/2009/01/state-of-church-planting.html

It seems to be a common conclusion that the spiritual landscape in the United States is changing. There is a thought that Christianity is moving from majority to minority, settlers to sojourners, and maintenance to mission.