| ASPSeek: Indexes as many as a few million URLs and searches for words and phrases. Uses wildcards and Boolean operators. SWSoft released ASPSeek under the GNU GPL. |
| ALISE: A compact index server optimized for speed and ease of setup. Commercial product for Windows NT. |
| Alkaline Search Engine: An Internet/intranet search engine, free for non-commercial sites and available for Windows NT, Linux, Solaris, IRIX, FreeBSDI and BSDI. By Vestris Inc. |
| ASTAware SearchKey PRO: Indexing, search and retrieval of data residing on Internet and intranet servers, with support for multiple file formats and european languages. Together with ASTAware SearchDisc, offers a comprehensive solution for simultaneous online and CD searching. |
| Atrise Everyfind: Design a search engine for your web site, intranet, CD, DVD or any portable documentation. |
| CareerCast: Develops web-based job and resume search software for career, newspaper and employer sites. |
| Cenozoa: Provides search and recommendation engine services to e-commerce companies who want to offer the use of these tools on their existing websites. |
| Datalink linkSearch search engine software: linkSearch is search engine software capable of indexing pdf-, office-, html- and flash-documents. Handles dynamic and static sites, intranets, local nets and is very easy to deploy. |
| dtSearch: High-volume text search works with many file types. Features include hit highlighting, natural language, fuzzy, phonic, Boolean, proximity, field, numeric range. |
| Emerge: NCSA Information Technologies' effort to build a new search infrastructure that addresses issues of scale and heterogeneity. |
| Estraier: A full-text search engine for Japanese or English text. |
| F3DSearch: Software to make topic-specific searches by creating and maintaining a hybrid search engine-directory with a link-indexer. |
| Findmaan: A search engine developed on MySQL and PHP, and distributed under the GPL. |
| Fluid Dynamics Search Engine: Written in Perl. Online-manageable with a web browser. |
| focuseek searchbox: High performance, multi platform full-text search engine, spiders web or intranet sites, or indexes data you feed to it. Easily scriptable via a SOAP/REST API. Also supports a variety of input formats. |
| freeWAIS-sf FAQ: Frequently Asked Questions [FAQ] with answers for freeWAIS, a text retrieval system. |
| Google Search Solutions: Hosted search options and a search hardware product. |
| Harvest: Free GPL-licensed distributed search system to collect files of many different formats and make the information searchable using a web interface |
| HITS web search: Jon Kleinberg's method of searching the Web. Links to the Cornell researcher's extensive online publications list. |
| Hosted Site Search: FusionBot search engine, a remotely hosted search service. |
| ht://Dig: A complete indexing and searching system for a small domain or intranet. Source code provided under the GPL. |
| IB 2.0 WebCat: IB 2.0 is the commercial "big brother" of the public Isearch package. |
| IBM Intelligent Miner: Identifies and extracts business intelligence from your data assets. |
| Infoglide Software: Similarity Search Engine finds similarities and relationships between data in databases. |
| Inktomi Search Engine: Service provides searching in hosted clusters for specific domains and web sites. |
| Innerprise: Scalable search engine software for corporate web sites and intranets. |
| InTEXT WebSearch: Windows/Unix server search engine, includes natural-language querying and document summarization. |
| Java Search Engine: Search engine written in Java supports XML, XSLT and EJB. |
| Kscripts Web Site Indexer Search: Perl script indexes and allows Boolean searching. Suitable for indexing up to approximately 4,000 pages. |
| LinkSearch: Search engine that makes use of hypertext links and paths to provide rankings. Open source project under the GPL. |
| Managing Gigabytes: Book about indexing techniques and a software package that implements the algorithms. |
| Mnogosearch indexer/search: A free search spider, indexer and search front end for large-scale web sites. Databases supported include MySQL, Oracle8, MSSQL and PGSQL. Can also index newsgroups and remote sites. |
| Mondosoft: Offers analytics tools to manage content based on behavior. Mondosoft site search engine, reporting and optimization for Web environments. |
| Namazu: a Full-Text Search Engine: Namazu is a full-text search system. Not only does it work as a small or medium scale web search engine, but also as a personal search system for email or other files. |
| Open Objects Software: Open Objects Software is the UK integrator for Inktomi Search Software. |
| Panoptic: Enterprise Search Engine: Enterprise search engine with advanced text and metadata capabilities. |
| Perlfect Search: Free web site indexer and search engine suite. Includes automatic installation tool, meta tag searching, paginated results, relevance ranking and keyword weighting. |
| Portal Juice: Provides backend search engine services to micro and vertical niche market portals. |
| RightHere.net: Provides audio and Internet-based locator software services for banks, restaurants, retail outlets, and manufacturers. |
| S.L.I. Systems Learning Search System: A scalable search that learns from your users and adapts, provides search suggestions, and extensive reporting. |
| Search Engine: Perl-based software that allows visitors to search your site. |
| Simiax: Provides tools to build and maintain portals. |
| Suntek Chinese Search Engine: Chinese and English search engine for web sites and intranets. Available for embedding on CDs. Chinese-enabled content management system supports full text and field search in addition to workflow and publication management. |
| SWISH++: Unix-based file indexing and searching engine based on SWISH-E. SWISH++ is a complete rewrite developed to circumvent difficulties with the SWISH-E package. |
| SWISH-E: Search engine for Unix and Windows NT that handles meta tags. Free and open-source under the GNU public license. |
| TeraText Database System: Text management product for storing, indexing, retrieving and delivering documents or XML records (stored natively). |
| The Clever Project: Incorporates several algorithms that make use of hyperlink structure for discovering information on the Web. |
| The mp3Spider: This program searches SMB/CIFS shares of all available machines in the given domain recursively, for files ending with .mp3. The program is based on Norbert's jCifs client. |
| Thunderstone: Provides SQL-based relational full-text retrieval, dynamic publishing, object management, and web-indexing software. |
| TxSearch: Database indexing and searching. Integrates with IIS and Apache and supports ASP and PHP. |
| Ultra Search: Provides uniform search-and-locate capabilities over multiple repositories, multiple Oracle databases, IMAP mail servers, HTML documents on a web server, or files on disk. |
| Verticrawl: An Internet search engine and bot that craws web sites and intranets for multiple-format indexing. |
| VirTime Everywhere Search: Search software for sites and software help systems. Runs locally. |
| Voltix: A J2EE-based enterprise search solution. It can search through both structured and unstructured content including relational databases. |
| WebGlimpse: Finds information in a related web of pages. Collects and indexes pages based on traversal of links or subdirectories. Create a context-sensitive search by category by linking to relevant pages. |
| Webinator: Web walking and indexing package to create a retrieval interface to collections of HTML documents. Free for up to 2,000 pages. |
| YourAmigo: Search engine that uses a server-based agent to seek all URLs on a site, including dynamic pages from databases. Includes an function to keep searches current. |
| Zoom Search Engine: Free search engine software for your web site or intranet, with documentation and no advertising or dependency on external sites. PHP or ASP is required for the search front-end. |
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