Most information is available only to subscribers, but it may worth a visit. Jane's is generally recognized as the best source for defence, aerospace and transportation information. Site is searchable.
Pew Research Center is a nonpartisan fact tank that conducts public opinion polling, demographic research, content analysis and other data-driven social science research.
Statista is an online statistics, market research and business intelligence portal. It provides access to data from market and opinion research institutions, as well as from business organizations and government institutions.
