Eco data

http://www.tradingeconomics.com/china/central-government-debt-total-percent-of-gdp-wb-data.html
http://www.finfacts.ie/irishfinancenews/article_1016894.shtml
http://investing.curiouscatblog.net/2010/10/18/government-debt-as-percentage-of-gdp-1990-2009-usa-japan-germany-china%E2%80%A6/
http://blog.emap.com/boris/files/2010/02/public-debt-2010.jpg
http://www.ceda.com.au/research/priority-areas/economy.aspx

http://www.kwaves.com/debt.htm

http://www.telegraph.co.uk/finance/china-business/8183389/Wikileaks-Top-Chinese-official-doesnt-believe-GDP-figures.html

http://www.huffingtonpost.com/david-paul/deleveraging-society_b_130628.html

http://andrewsullivan.theatlantic.com/.a/6a00d83451c45669e20120a5dc5c99970c-popup

http://www.chrismartenson.com/blog/crisis-explained-one-chart-debt-gdp/11570

Cons.....very interesting counter view (nothing to worry?)

http://www.businessinsider.com/2009/2/us-debt-levels-are-fine-debt-to-gdp-chart-is-wrong-and-meaningless

GLOBAL Charts and articles

http://www.tradingfloor.com/posts/david-karsboel/accelerating-towards-multiple-train-wrecks-1397

http://paul.kedrosky.com/archives/2010/01/sovereign_debt_1.html

http://macronomy.blogspot.com/2010/05/long-term-macro-views-as-per-angus.html

http://www.marktaw.com/culture_and_media/politics/USA_debt_2009.html

http://gulzar05.blogspot.com/2010/01/is-there-danger-of-indian-sovereign.html

http://investing.curiouscatblog.net/2010/10/18/government-debt-as-percentage-of-gdp-1990-2009-usa-japan-germany-china%E2%80%A6

http://www.visualeconomics.com/gdp-vs-national-debt-by-country/

http://www.oxfonline.com/MMR/MMR0809.html?pub=MMR&code=EMMRK814 (a tout site butit has some interesting charts)