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.
