Further to last week's "green shots" blog I see this is a topic exercising many commentators at the moment, see links below for some diverse views.
http://business.timesonline.co.uk/tol/business/columnists/article6087954.ece
http://www.guardian.co.uk/business/2009/apr/12/recession-recovery-growth-signs-uk
http://www.ft.com/cms/s/0/b1a1ab38-2631-11de-be57-00144feabdc0.html
http://www.telegraph.co.uk/finance/comment/edmundconway/5129148/great.html