Harvest is a system to collect information and make it searchable using a Web interface. It can collect information using HTTP, FTP, NNTP, and local files. Supported formats include HTML, DVI, PS, fulltext, mail, man pages, news, troff, WordPerfect, C sources, and many more. Adding support for new formats is easy due to Harvest's modular design.
Doli (Documentation Libre Indexée) is a portable system to index and search documentation. The system consists of an indexer, and a Tcl-based Web server which provides the search interface. It was designed to provide a platform-independent method for searching HTML documentation. A PHP and MySQL interface is also included.
XMLPublication is a set of tools to generate Web pages from (possibly large) desktop documents or other structured documents, such as books with paragraphs, or tabular data. It cuts documents into Web pages, and creates customizable multi-indices. All this is done through a repeatable process in which data is separated from presentation and user settings. It uses XML techniques, particularly XSLT and Ant.
Java Search Engine is a server-side search engine program for Web sites written completely in Java. It features HTML and PDF indexing, a built-in Web crawler, international encodings support, words and phrases search, and returning results as quotations with highlighted words (like Google). It is available as EJB, JSP, servlet, or Java API library. For non-Java enviroments, it is available as an XML server with XSLT support.