By content/topic
General
- Ask.com (formerly Ask Jeeves)
- Baidu (Chinese)
- Bing (formerly MSN Search and Live Search)
- Cuil
- Duck Duck Go
- Kosmix
- Sogou (Chinese)
- Sohu (Chinese)
- Yahoo! Search
- Yandex (Russian)
- Yebol
Geographical limited scope
- Accoona, China/US
- Alleba, Philippines
- Ansearch, Australia/US/UK/NZ
- Baidu, China
- Cadê?, Brazil
- Daum, Korea
- Goo, Japan
- Guruji.com, India
- Leit.is, Iceland
- Araby, Middle East
- Miner.hu, Hungary
- Najdi.si, Slovenia
- Naver, Korea
- Onkosh, Middle East
- Rambler, Russia
- Rediff, India
- SAPO, Portugal/Angola/Cabo Verde/Mozambique
- Search.ch, Switzerland
- Sesam, Norway, Sweden
- Seznam, Czech Republic
- Walla!, Israel
- Yandex, Russia
- ZipLocal, Canada/US
Accountancy
Business
Enterprise
See also: Enterprise search
- AskMeNow: S3 - Semantic Search Solution
- Concept Searching Limited: concept search products
- Dieselpoint: Search & Navigation
- dtSearch: dtSearch Engine(SDK), dtSearch Web
- Endeca: Information Access Platform
- Exalead: exalead one:enterprise
- Expert System S.p.A.: Cogito
- Fast Search & Transfer: Enterprise Search Platform (ESP), RetrievalWare (formerly Convera)
- Funnelback: Funnelback Search
- Jumper 2.0: Universal search powered by Enterprise bookmarking
- ISYS Search Software: ISYS:web, ISYS:sdk
- Microsoft: SharePoint Search Services
- Northern Light
- Open Text: Hummingbird Search Server, Livelink Search
- Oracle Corporation: Secure Enterprise Search 10g
- SAP: TREX
- TeraText: TeraText Suite
- Vivisimo: Vivisimo Clustering Engine
- X1 Technologies : X1 Enterprise Search
- ZyLAB Technologies: ZyIMAGE Information Access Platform
Mobile/Handheld
- Taptu: taptu mobile/social search
Job
Main articles: Job search engine and Employment website
See also: Category:Job search engines
- Bixee.com (India)
- CareerBuilder.com (USA)
- Craigslist (by city)
- Eluta.ca (Canada)
- Hotjobs.com (USA)
- Incruit (Korea)
- Indeed.com (USA)
- LinkUp.com (USA)
- Monster.com (USA), (India)
- SimplyHired.com (USA)
- Naukri.com (India)
Legal
Medical
- Bioinformatic Harvester
- Entrez (includes Pubmed)
- EB-eye EBI's Search Engine EMBL-EBI's Search engine
- GenieKnows
- GoPubMed (knowledge-based: GO - GeneOntology and MeSH - Medical Subject Headings)
- Healia
- Searchmedica
- WebMD
- PubGene
- Nextbio (Life Science Search Engine)
- VADLO (Life Sciences Search Engine)
News
People
Real property
Video Games
- GenieKnows
- Wazap (Japan)
By information type
Search engines dedicated to a specific kind of information
Forum
Blog
Multimedia
See also: Multimedia search
- Bing Videos
- blinkx
- FindSounds
- Google Video
- Munax's PlayAudioVideo
- Picsearch
- Pixsta
- Podscope
- Songza
- SeeqPod
- Veveo
- TinEye
- Yahoo! Video
- YouTube
Source code
BitTorrent
These search engines work across the BitTorrent protocol.
Maps
Price
- Google Product Search (formerly Froogle)
- Kelkoo
- MSN Shopping
- MySimon
- PriceGrabber
- PriceRunner
- PriceSCAN
- Shopping.com
- ShopWiki
- Shopzilla (also operates Bizrate)
- TheFind.com
Question and answer
Human answers
Automatic answers
See also: Question answering
Natural language
See also: Natural language search engine and Semantic search
By model
Open source search engines
- DataparkSearch
- Egothor
- Grub
- Ht://dig
- Isearch
- Lucene
- Lemur Toolkit & Indri Search Engine
- mnoGoSearch
- Namazu
- Nutch
- OpenFTS
- Sciencenet (for scientific knowledge, based on YaCy technology)
- Sphinx
- SWISH-E
- Terrier Search Engine
- Wikia Search
- Xapian
- YaCy
- Zettair
Semantic browsing engines
Social search engines
- ChaCha Search
- Delver
- EarthFrisk.org
- Eurekster
- Mahalo.com
- OneRiot
- Rollyo
- Sproose
- Trexy
- Wikia search
- Wink provides web search by analyzing user contributions such as bookmarks and feedback
Metasearch engines
See also: Metasearch engine
- Brainboost
- ChunkIt!
- Clusty
- Dogpile
- Excite
- Harvester42
- HotBot
- Info.com
- Ixquick
- Kayak
- LeapFish
- Mamma
- Metacrawler
- MetaLib
- Mobissimo
- Myriad Search
- SideStep
- Turbo10
- WebCrawler
- DeeperWeb
