album is a free HTML/XHTML photo album and gallery generator that supports themes/skins. You can choose different themes or write your own to get different layouts and styles. It creates all your thumbnails (including directory thumbnails) and descends into directories so you can organize your photos. See the home page for more examples. album is also multi-lingual, with many languages being added all the time. N.B.: The purchase link is provided for donations; the software does not cost anything.
BrowserExpress is a Web-based e-mail client. BrowserExpress provides a Web browser interface to any mail server, giving all your users Web-based e-mail from any Web browser. The BrowserExpress interface is fully customizable to support your branding, banner advertisements, and language choice. BrowserExpress implements POP3, SMTP, LDAP, and MIME standards.
CGI::Application is a Perl framework intended to make it easier to create sophisticated, reusable Web-based applications. This module implements a methodology which can make Web software easier to design, easier to document, easier to write, and easier to evolve. CGI::Application builds on standard, non-proprietary technologies and techniques, such as the Common Gateway Interface and Lincoln D. Stein's excellent CGI.pm module. CGI::Application judiciously avoids employing technologies and techniques which would bind a developer to any one set of tools, operating system, or Web server.
Greenstone is a complete digital library creation, management, and distribution package for Unix, Windows, and Mac OS X. Users create collections by gathering a set of input documents, specifying a configuration file, and running the build script. It provides full-text and fielded searching, browsable indexes, customised formatting, metadata extraction (acronyms, languages, etc), a Z39.50 client, and many other features. It supports many input formats, the interface is configurable and multi-lingual, and collections can be distributed on the Web or on CD-ROM.
Embperl gives you the power to embed Perl code in your HTML or XML/XSLT documents and the ability to build your Web site out of small reusable objects in an OO-style. It can also build taglibs and use caching. You can also take advantage of hundreds of Perl modules which have already been written for such tasks as database access to a growing number of database systems. Embperl has several features especially useful for creating HTML, including dynamic tables, formfield-processing, escaping/unescaping, session handling, and more. Embperl is a server-side tool, which means that it's browser-independent. It can run in various ways: under mod_perl, as a CGI script, or offline.
HTML::Mason is a full-featured web site development and delivery system. Mason allows web pages and sites to be constructed from shared, reusable building blocks called components. Components contain a mix of Perl and HTML, and can call each other and pass values back and forth like subroutines. Components increase modularity and eliminate repetitive work. HTML::Mason is most powerful when used in conjunction with mod_perl, but can be used in standalone applications as well.
Namazu is a full-text search system intended for easy use. 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. Supported document types: HTML, Mail/News, MHonArc, RFC, TeX (with detex), man (with groff), Word (with wvWare), PDF (with pdftotext) and plain text.