Websites: China

Census: http://www.stats.gov.cn/english/

Guangzhou and China databases:

Numbeo.com http://numbeo.com

Guangzhou statistics I: http://english.gz.gov.cn/gzgoven/s3709/201008/787559.shtml

Guangzhou statistics II: http://www.thechinaperspective.com/topics/city/guangzhou/

Overall statistics I: http://www.thechinaperspective.com/

Overall statistics II: http://www.statista.com/

News: http://www.chinatoday.com/ and www.supchina.com

Business: http://www.investguangzhou.gov.cn/web/eng4/jsp/index.jsp

China government stats: http://www.stats.gov.cn/english/

Crime: http://www.numbeo.com/crime/compare_countries_result.jsp?country1=China&country2=United+States

US State Department (Crime): https://www.osac.gov/pages/ContentReportDetails.aspx?cid=17107

Health: http://www.who.int/en/

CIA: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ch.html

UN: http://www.unhcr.org/5000187d9.html

http://www.stats.gov.cn/english/

World Bank: http://data.worldbank.org/country/china

Education: http://www.statista.com/topics/2090/education-in-china/

Population: http://www.newgeography.com/content/002218-china-urbanizing-and-moving-east-2010-census

http://ije.oxfordjournals.org/content/31/4/772.full

Rand: http://www.rand.org/news/press/2015/01/19.html

Aging: http://chinawatch.washingtonpost.com/2012/04/nursing_homes_booming/

http://nextbigfuture.com/2012/05/china-has-aging-population-and-gender.html

China Facts: http://www.slideshare.net/3wpr/29-amazing-facts-and-stats-about-china