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.
GnuCash allows you to track bank accounts, stocks, income, and expenses. As quick and intuitive to use as a checkbook register, it is based on professional accounting principles to ensure balanced books and accurate reports. It is backed by an active development community and is blossoming into a full-fledged accounting system.
Finance::Quote is a Perl module which can fetch on-line stock quotes, including those from American, European, Canadian and Australian markets. Information from a number of investment houses is also available. Features include currency lookups and conversions, automatic failover support, and loadable user modules.
Server-side FileManager is a Java servlet which implements FileManager. You can use this servlet for remote site management: upload/download files, copy/move files, edit files, etc. Its main advantage is that it uses only the HTTP protocol for access to your host, which allows it to work through most firewalls.
Smilehouse Workspace is a Java based e-commerce application for product, order, and customer information management. It can be used for building and managing product catalogs, online stores, Webshops, and b-to-b extranets. It currently runs on Tomcat and has two Web-based interfaces. The first is a themed interface visible to the public, and the second is a separate administration interface for managing both the appearance and content of the published service (users and customers, product information and related files, order information).