The UN provides unrestricted access to a variety of databases with population and other social and economic indicators. The databases include the Census Knowledge Base; the Demographic Yearbook System; Dystat, The United Nations Disability Database; the Good Practices Database; InfoNation; the Joint Oil Initiative; the Millennium Indicators Database, the Monthly Bulletin of Statistics Online; National Accounts Main Aggregates Database; Population of capital cities and cities of 100,000 and more inhabitants; Population and housing censuses: census dates; Population and Vital Statistics on Internet; Service Trade Statistics; Social Indicators; and, Statistics and indicators on women and men. These can be accessed at http://unstats.un.org/unsd/databases.htm . The links on the page do not necessarily lead to a single data base, but often to a page with a number of databases available. Data may be downloadable to a spreadsheet or may be in PDF format and only downloadable as a pdf file. Another option is http://data.un.org/ which permits users to select a topic and download csv or pdf files by country or geographic area.