Nenhuma lista única captura todo motor, mas aqui está índice categorizado, curado de motores ativos e notáveis.
| Categoria | Motores |
|---|---|
| E-commerce | Amazon, eBay, Etsy, Walmart, AliExpress, Idealo, Google Shopping |
| Viagem | Skyscanner, Kayak, Google Flights, Booking.com, Airbnb |
| Empregos | Indeed, LinkedIn, Glassdoor, Google for Jobs, Wellfound |
| Código/Dev | GitHub, GitLab, Sourcegraph, GrepApp, PublicWWW, Libraries.io |
| Acadêmico | Google Scholar, PubMed, Semantic Scholar, Dimensions, CORE, arXiv, IEEE Xplore, ACM DL |
| Médico | PubMed, Cochrane, UpToDate, ClinicalTrials.gov, TRIP |
| Legal | Google Scholar (case law), CourtListener, Casetext, Fastcase, BAILII |
| Patentes | Google Patents, USPTO, EPO Espacenet, WIPO Patentscope, Lens.org |
| Livros | Google Books, Open Library, WorldCat, HathiTrust, Internet Archive |
| Notícias | Google News, Bing News, NewsNow, Ground News, AllSides |
| Imagens | Google Images, Bing Visual Search, Yandex Images, TinEye (reversa), Pixabay, Unsplash |
| Vídeo | YouTube, Google Video, Bing Video, Dailymotion, Vimeo, PeerTube instances |
| Datasets | Kaggle, UCI ML Repo, Google Dataset Search, data.gov, Eurostat |
| Fediverse / Social | Mastodon search (tootfinder), Fediverse Observer, FediDB |
AltaVista, Lycos, Excite, Ask Jeeves, AllTheWeb, Inktomi, Cuil, Blekko, Yahoo Search (agora Bing), AOL Search, MSN Search, Live Search, Windows Live Search, Scroogle, Ixquick (→ Startpage).
Use Brave Search ou Kagi (pago, $10/mês) para melhor combo índice independente + privacidade. SearXNG para controle total.
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