OPAC (On-line Public Access Catalogue) of the Biblioteca Comunale Leonardiana in Vinci, specialized library dedicated to Leonardo da Vinci which owns the complete collection of Leonardo's works editions from 1651.
Leonardodigitale (E-leo) makes it possible to view Leonardo’s manuscripts on-line and carry out research on Leonardo’s glossary and drawings
OPAC (On-line Public Access Catalogue) of the Library of Istituto e Museo di Storia della Scienza, Florence, specialized in history of science and technology with over 4000 digitalized documents which can be consulted online
Biblioteca Nazionale Centrale di Firenze (National Central Library of Florence), many digitalized manuscripts can be consulted online
Biblioteca Ambrosiana is the second oldest public library in Europe, founded in 1607. The library has a rich heritage: over 30.000 manuscripts, 12.000 parchments, 2.300 incunabula, 10.000 drawings, 30.000 engravings and over 1000 medieval bindings and Coin and Archaeological collections. They also have the 1119 sheets of Leonardo’s Codex Atlanticus
Les Bibliothèques Virtuelles Humanistes is the digital library of the University of Tours dedicated to the source and works on the Renaissance
Gallica is the digital library of the National Library of France in which it is possible to access digitalized books, maps, magazines, photographs and a collection of manuscripts and miniatures
Gli Anni della Cupola is the digital archive of documents relative to the construction of the dome of S. Maria del Fiore in Florence
Internet Archive TEXT ARCHIVE contains a wide range of digitalized texts including numerous historical documents
Database machine drawings (by Max Planck Institute for the History of Science) contains a selection of images of machines taken from sources that go from 1200 to 1650
Kinematics Models for Design is the portal dedicated to the works of History of Technology of the Cornell University Library
The Archimede Project is a database of instruments and resources for the study of the History of Mechanics of the Max Planck Institute for the History of Science
Honnecourt on line is a website dedicated to the journals of Villard de Honnecourt, a rare source of medieval architecture and technology
Newton Papers section dedicated to the works of Newton at the Cambridge Digital Library in which it is possible to consult his manuscripts and works
Giorgio Vasari, Le vite - Edizione Giuntina e Torrentiniana digital edition edited by Centro Ricerche Informatiche per i Beni Culturali La Scuola Normale, Pisa