https://patft.uspto.gov/netahtml/PTO/search-bool.html Search U.S. patents from the full text and image database at the patent office. Search by patent number or date, keyword or inventor. Search all patents from 1790 through 1975.
https://en.wikisource.org/wiki/Main_Page “Poetry from ancient and romantic to modern, in love and war Texts, laws, constitutions of many countries Documents from US history, including Revolution and Civil War US law: Supreme Court decisions, government documents, presidential addresses General literature: modern novels and short stories, horror stories, children’s literature, science fiction, drama […]
https://en.wikiversity.org/wiki/Wikiversity:Main_Page Wikiversity is a Wikimedia Foundation project devoted to learning resources, learning projects, and research for use in all levels, types, and styles of education from pre-school to university, including professional training and informal learning. We invite teachers, students, and researchers to join us in creating open educational resources and […]
Mises Wiki is a wiki project dedicated to the advancement of the Austrian School of Economics and related thought. Sponsored by the Ludwig von Mises Institute and founded on 5 November 2010, the repository now has 2,013 articles. We are always looking for more contributors – to begin, you can […]
https://scholar.google.com/ Released in beta in November 2004, the Google Scholar index includes most peer-reviewed online academic journals and books, conference papers, theses and dissertations, preprints, abstracts, technical reports, and other scholarly literature, including court opinions and patents.
https://openlibrary.org/ The ultimate goal of the Open Library is to make all the published works of humankind available to everyone in the world. While large in scope and ambition, this goal is within our grasp. Achieving it will require the participation of librarians, authors, government officials and technologists. Imagine what […]
https://catalog.archives.gov/ The National Archives Catalog lets the staff and public search multiple National Archives resources at once. The catalog searches across archival descriptions, digitized and electronic records, authority records, and web pages from Archives.gov and the Presidential Libraries. The catalog also allows the public to participate in cataloging records by […]
https://historyhub.history.gov/welcome A support community managed by the National Archives for researchers, citizen historians, archival professionals, and open government advocates What is History Hub? History Hub is a crowdsourcing platform sponsored by the National Archives. It is a place to ask questions, share information, work together, and find people based on […]
https://www.wolframalpha.com/tour/ “Wolfram|Alpha is a unique engine for computing answers and providing knowledge. It works by using its vast store of expert-level knowledge and algorithms to automatically answer questions, do analysis and generate reports. LINGUISTIC ANALYSIS New kinds of algorithms for 1,000+ domains CURATED DATA 10+ trillion pieces of data from […]