World Statesmen.org is an encyclopedia of the heads of state and heads of government and, in certain cases, de facto leaders occupying neither of those formal positions, of all countries and territories of the world
The GB Historical GIS is a description of Britain and its localities, showing how they have changed through the centuries. The Vision of Britain site is designed primarily as a public resource for people interested mainly in local history
"Wikipedia and Freebase both appeal to people who love to use and organize information. The difference lies in the way they store information. Wikipedia arranges information in the form of articles. Freebase lists facts and statistics"
Since 1920, the Clerk of the House has collected and published the official vote counts for federal elections from the official sources among the various states and territories. These documents, out of print for many years, have been collected and scanned in a format to make them once again available to researchers and students
Moissonnage de données structurées traitées et mises en forme dynamiquement, en réponse aux requêtes des utilisateurs, par un ensemble d'algorithmes et de méthodes de calcul. Les requêtes doivent respecter certaines conventions pour être prises en compte. Convient aux recherches portant soit sur des données quantitatives, soit sur des données factuelles structurées provenant de répertoires, par exemple pour effectuer des comparaisons entre elles