Abbott Aerospace Technical Library
The Abbott Aerospace Technical Library provides a centralized repository of over 17,000 technical documents and computational tools for aerospace structural
Search
Search engines and search tools, from the most famous ones to very specialized. Note that standards and regulations search have their dedicated “Standards” category and therefore not included here.
Onion Search Engine
Onion Search Engine is a discovery tool designed to index and retrieve content from the Tor network, specifically targeting .onion
i2p Search
i2psearch.com is a specialized search engine and directory designed to index and discover “eepsites” within the I2P (Invisible Internet Project)
Onion.live Darknet Search
Onion.live is a specialized search engine and directory for the Tor network that provides a centralized repository of “verified” (editor
Openverse Free Images Search
Openverse is an open-source search engine that aggregates over 700 million Creative Commons-licensed and public domain media files, including images
FDA Orange Book: Approved Drug Products
The FDA Orange Book, officially titled Approved Drug Products with Therapeutic Equivalence Evaluations, serves as the definitive regulatory database for
Europeana Images and Archives Search
Europeana aggregates and provides access to over 50 million digitized items from more than 3,500 European cultural heritage institutions. The
Internet Archive: WayBack Machine
Search over 580+ billions pages … the current version and many of the previous versions over the years. Free to
SlideShare Documents Repository
A great search on slide decks over any topic. Transcript of slide texts is most of the time also provided.
PubChem Chemical Information Search
Hosted by the National Library of Medicine, PubChem is a comprehensive, open-access chemical database maintained by the National Center for