Miscellaneous
Alphabets of the world
Omniglot [Encyclopaedia of writing systems & languages worldwide]
Date converter
Isotropic [Chinese, Coptic, Ethiopic, Gregorian, Hebrew, Islamic, Mayan and
Islamic Finder [Islamic calendar converter]
National laws (i.e. constitutions, criminal codes, citizenship laws)
Constitution Finder
ECOI [Select country > National Laws]
Islamic Family Law [Check 'Legal']
Legislation Online [Domestic laws relating to specific human rights issues
Multiple Citizen [Citizenship Laws finder]
Natlex
Religion and Law Research Consortium
UN Women [Constitutional Database; Gender focus]
UNHCR Refworld [Select country > Legal information > National Legislative
World Law Guide [Check Legislation > select country]
WorldLII
Passports/ documents
Citizenships Rights in Africa Initiative
Embassy world
Passport Index
U.S. Visa: Reciprocity and Civil Documents by Country
Visa Reciprocity and Country Documents
World Passports
World airports
Aircraft Charter World [Select airports > select region > select country]
World Languages
Ethnologue
Language museum [CAUTION: not complete]
Linguist list
Nations Online
Rosetta Project
World Social Security Programmes
National Social Security systems [in French, but some in English]
USA Social Security Administration