Click on the following links. Please note these will open in a new window.

• http://www.issp.org/
• http://www.icpsr.umich.edu/icpsrweb/content/datamanagement/preservation/policies/index.html
• http://fedstats.sites.usa.gov/
• http://www.census.gov/
• http://www.icpsr.umich.edu/icpsrweb/ICPSR/
• http://www.ssdan.net/
• http://dataferrett.census.gov/
• http://www.census.gov/en.html
• http://www.ntis.gov/
• http://www.cpc.unc.edu/projects/addhealth
• http://www.ssc.wisc.edu/nsfh/
• http://www.icpsr.umich.edu/icpsrweb/ICPSR/series/151
• www.icpsr.umich.edu
• http://stats.bls.gov/
• http://hrsonline.isr.umich.edu/
• http://www.icpsr.umich.edu/icpsrweb/content/ICPSR/access/restricted/index.html
• http://www.icpsr.umich.edu/icpsrweb/landing.jsp
• http://www.icpsr.umich.edu/icpsrweb/ICPSR/index.jsp
• http://www.icpsr.umich.edu/icpsrweb/ICPSR/citations/
• http://www.murray.harvard.edu/
• https://www.ssa.gov/policy/docs/progdesc/ssptw/
• http://www.icpsr.umich.edu/icpsrweb/landing.jsp
• http://www.gesis.org/en/eurobarometer/home/
• http://www.wider.unu.edu/research/Database/en_GB/wiid
• http://www.icpsr.umich.edu/icpsrweb/instructors/international.jsp
• http://www.cessda.net/
• http://www.ifdo.org/
• http://www.census.gov/pred/www/Intro.htm
• https://books.google.com/ngrams
• http://www.google.org/flutrends
• http://www.icpsr.umich.edu/icpsrweb/content/
• http://my.gradsch.wisc.edu/hrpp/10023.htm
• http://www.data-archive.ac.uk/create-manage/consent-ethics
• http://www.icpsr.umich.edu/icpsrweb/ICPSR/
• http://www.icpsr.umich.edu/icpsrweb/ICPSR