XMLDB uses an RDBMS to persist arbitrary XML documents. Due to its storage mechanism, searching for and recalling documents is extremely quick. You can also perform XSL translation on documents with surprising speed. The library can be used in any program to store libxml2 documents. A PHP module is also included, making XMLDB into a complete three-tier Web application development suite.
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.
POPsearch is a desktop search engine that is designed to help you easily find information on your computer. With features that other search engines don't have,it lets you index your entire collection of email messages and files. As information is indexed, it is immediately available for analysis from any Web browser. When POPsearch is configured correctly, you can also access your data remotely with RSS feeds, email feeds, or from any computer that has a Web browser.