ウィキペディア多年生植物源リスト（WP:RSP）
The Wikipedia Perennial Sources page is a dynamic index that documents community consensus on the reliability of frequently cited news
検索
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.
問題のある論文選別ツール（PPS）
The Problematic Paper Screener (PPS) tool runs automated “fingerprint-queries” against the Dimensions.ai academic search engine, hunting for textual or structural
アボット・エアロスペース技術ライブラリー
アボット・エアロスペース・テクニカル・ライブラリーは、航空宇宙構造に関する17,000件以上の技術文書と計算ツールを一元的に保管するリポジトリです。
オニオン検索エンジン
Onion Search Engine is a discovery tool designed to index and retrieve content from the Tor network, specifically targeting .onion
i2p検索
i2psearch.com is a specialized search engine and directory designed to index and discover “eepsites” within the I2P (Invisible Internet Project)
Onion.live ダークネット検索
Onion.live is a specialized search engine and directory for the Tor network that provides a centralized repository of “verified” (editor
Openverseの無料画像検索
Openverse is an open-source search engine that aggregates over 700 million Creative Commons-licensed and public domain media files, including images
FDAオレンジブック：承認済み医薬品
FDAオレンジブック（正式名称は「治療的同等性評価付き承認医薬品」）は、以下の規制に関する決定的なデータベースとして機能します。
Europeanaの画像とアーカイブ検索
Europeana aggregates and provides access to over 50 million digitized items from more than 3,500 European cultural heritage institutions. The
インターネットアーカイブ：ウェイバックマシン
Search over 580+ billions pages … the current version and many of the previous versions over the years. Free to