Lista de fontes perenes da Wikipédia (WP:RSP)
The Wikipedia Perennial Sources page is a dynamic index that documents community consensus on the reliability of frequently cited news
Procurar
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.
Triador de Artigos Problemáticos (PPS)
The Problematic Paper Screener (PPS) tool runs automated “fingerprint-queries” against the Dimensions.ai academic search engine, hunting for textual or structural
Biblioteca Técnica Aeroespacial Abbott
A Biblioteca Técnica Aeroespacial da Abbott oferece um repositório centralizado com mais de 17.000 documentos técnicos e ferramentas computacionais para estruturas aeroespaciais.
Mecanismo de busca Onion
Onion Search Engine is a discovery tool designed to index and retrieve content from the Tor network, specifically targeting .onion
Pesquisa i2p
i2psearch.com is a specialized search engine and directory designed to index and discover “eepsites” within the I2P (Invisible Internet Project)
Onion.live Busca na Darknet
Onion.live is a specialized search engine and directory for the Tor network that provides a centralized repository of “verified” (editor
Busca de imagens gratuitas do Openverse
Openverse is an open-source search engine that aggregates over 700 million Creative Commons-licensed and public domain media files, including images
Livro Laranja da FDA: Produtos Farmacêuticos Aprovados
O Livro Laranja da FDA, oficialmente intitulado Produtos Farmacêuticos Aprovados com Avaliações de Equivalência Terapêutica, serve como o banco de dados regulatório definitivo para
Pesquisa de imagens e arquivos da Europeana
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