GNU TeXmacs is a free wysiwyw (what you see is what you want) editing platform with special features for scientists. The software aims to provide a unified and user friendly framework for editing structured documents with different types of content: text, mathematics, graphics, interactive content. TeXmacs can also be used as an interface to many external systems for computer algebra, numerical analysis, and statistics. New presentation styles can be written by the user and new features can be added to the editor using Scheme.
LyX is a document processor that encourages an approach to writing based on the structure of your documents, not their appearance. It is intended for people people who write and want their writing to look great without tinkering with formatting details, font attributes, or page boundaries. On screen, it looks like any word processor, but it uses the TeX engine for printed output and producing richly cross-referenced PDFs. It is stable and fully featured.
TWiki is a flexible, powerful, and simple Web based collaboration platform. It is suitable for dynamic intranets and knowledge bases, and for sharing and managing documents and collaborative projects. It resembles a normal Web site, but every page can be changed from a browser. It features automatic link generation, full text search, group authorization, Web forms, reporting, change notification, file attachments, revision control of pages and attachments, a modular templating system with skins, hierarchical navigation based on the topic parenting feature, and more. Plugins can be used to enhance the program and build groupware applications.
xlHtml converts an Excel spreadsheet file (.xls) into highly-optimized HTML. It includes scripts to allow it to be used as a Netscape or mutt plugin and as a xls handler for Apache. The program currently supports string, blank, boolean, error, integer, floating point, hyperlinks, and formula cells. It can also output in XML, tab delimited, or comma separated values (CSV).
rimric interactive offers complete intranet/Internet databasing and collaboration solutions for any sized business or project. You can maintain invoices, purchase orders, contacts, investment groups, securities, and other data sets, or establish a Wiki based on standards, all using the fastest technologies available.
MyHeadlines is module that adds syndicated headline functionality to any PHP and MySQL-based website. Your users may subscribe to multiple RSS feeds from a fully categorized database of over 1,000 sources. It was previously a PHPNuke/PostNuke Addon, but can now be integrated with any Web site.
Permission Record Information Machine (PRIM) delivers database connectivity via a web browser. Users can have different database permissions (e.g. create tables, modify tables, etc.). PRIM has built-in database analytical tools such as graph displays, reporting, etc. English and Chinese (Big5) language support.
SharedExpenses is a web-based expense manager. It's based on the idea of a group of people living in one house, needing to have common items purchased for both the house and individual members. It supports a number of useful features including group aliases, credits, receipts, and automatic expense dividing. It has been written in Perl using XML::Twig and CGI.
@1 Table Publisher allows you to create, edit, and display Microsoft Excel or Access tables directly via a Web browser. It allows you to create tables from scratch, import MS-Excel/Access tables, or use existing data files on servers. It has support for master login and sub-user login. It also allows two-way import/export to/from MS-Excel/Access data files.