SDBA Revolution is an open-source architecture written in Perl which simplifies and streamlines the process of writing applications that run on an instant messaging network. It features easy scripting of IM responses, session variables which are consistent across messages, session time limits, support for multiple "apps" from one bot, basic security, the ability to use multiple access lists, and capabilities to allow external application integration. It makes writing IM apps very much like writing mod_perl or PHP pages. It currently supports AIM, MSN, ICQ, YIM, and Jabber. The homepage has full tutorials and documentation.
WSIF (the "Web Services Invocation Framework") is a WSDL-based API for invoking WSDL-described services. WSIF developers interact with Web Services at the abstract level through their WSDL descriptions. This is done independently of APIs specific to a message format or network protocol (eg SOAP APIs). With WSIF, developers work with the same programming model regardless of how the Web service is implemented and accessed.
Chaperon is a LALR parser, which parses structured text documents and generates XML documents as output. It includes a parser generator like yacc and a regex scanner like lex. As input, it uses Chaperon, a grammar written in XML. The project includes a Ant task and transformer components for the Apache Cocoon project.
Apache Forrest is a publishing framework that transforms input from various sources into a unified presentation in one or more output formats. The modular and extensible plugin architecture is based on Apache Cocoon and relevant standards, which separates presentation from content. Forrest can generate static documents, be used as a dynamic server, or be deployed by its automated facility.
Tammi is a Java component based development framework and run-time container for applications supporting Web browsers, mobile terminals and/or Swing-based user interfaces. Tammi application components can implement independent business logic themselves or act as proxies to native libraries, remote programs, and other kinds of manageable systems.
MightyCal is a powerful calendar/schedule building program which aims to be the MS Access of the Web calendaring world. It provides an easy-to-use administration interface for developing custom calendars of many types, from simple event bulletin boards, to schedulers of human/physical resource availability, to schedulers which automatically take programmed actions. Users of a MightyCal site can choose to view calendars in a wide variety of formats on numerous devices, from standard HTML to PDF and WML. MightyCal's architecture combines the object-oriented web development of Zope with the XML transformation capabilities of Cocoon.
Douglas Thrift's Search Engine is an indexing search engine for use on small Web sites such as personal or small business sites. It is designed to be very similar to Google for end users and its output is customizable. For indexing, it supports both the Robots Exclusion Protocol and the Robots META Tag.
jUDO (java Universal Data Objects) speeds up development/maintainence and removes database-vendor dependency for applications using databases. You should use jUDO whenever you don't want to use EJBs. You don't write any database code; you only have to specify the container classes and the interfaces for the models, and then jUDO creates the implementation for you runtime (no source is generated). It derives all info needed from your interfaces method names that follows name-pattern rules. In case you need some special access method, you either add a plugin for this or simply go directly against the database. jUDO is not as configurable and advanced as other much more professional software like Castor, Hibernate, etc., but since jUDO derives the database from your code, there is never a mismatch between code and database.