This is a collection of books digitized from libraries in the US. Books published before 1923 will be freely available as well as a very small subset of works after that date. All books available, however, can be searched.
Resources of digitized images and texts from European archives, museums, and libraries. Use the drop-down menu in the main search bar to select Italy as the place. Create an account to add your own tags, create collections, and save searches, among other features.
A directory of collections of open access articles called repositories. Check for a repository related to your discipline or an author's institution to see if there might be a free version of an article. Or use it for searching. Don't forget that Georgetown has its own Institutional Repository, too!