Amaya is a complete Web browsing and authoring environment, and comes equipped with a WYSIWYG style interface. It lets users both browse and author valid Web pages, with standards including (X)HTML, native MathML, and SVG documents. It also includes a collaborative annotation application (RDF).
Arachne is a fullscreen graphical WWW browser which runs on DOS compatible operating systems. An alpha version of Arachne for POSIX-compliant systems like Linux is also available. Arachne featrues very low hardware and operating system requirements. Arachne doesn't require any complex toolkit or library to display Web pages and user interface.
Deadman's Redirect is designed to replace whatever is loaded when you click on the Home button in your browser. It is a Web surfer's power tool that can be completely customized, using HTML, to fit the needs of the user. It allows for URL redirection as well as an interface to various search engines through its aliasing system. It also supports user-set aliases with functional arguments, RSS headlines, and a history of all the URLs that pass through it.
Emacs/W3 is a full-featured web browser, written entirely in Emacs-Lisp, that supports all the bells and whistles you will find in use on the web today, including frames, tables, stylesheets, and much more. Emacs/W3 runs on most major operating systems, including almost any flavor of Unix, Windows NT/95, AmigaDOS, OS/2, and VMS and is another reason to never leave Emacs.
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.
Fortify provides full strength, 128-bit encryption facilities to the export editions of Netscape Navigator and Communicator. These facilites are used when connecting to an encrypting web server (with the SSL protocol). Fortify also adds the ability to generate 1024-bit RSA keys internally (these are typically used for client certificates), plus the ability to send and receive e-mail messages using strong 128-bit encryption (with the S/MIME protocol).
GNU Wget is a utility for noninteractive download of files from the Web. It supports HTTP and FTP protocols, as well as retrieval through HTTP proxies. It can follow HTML links, download many pages, and convert the links for local viewing. It can also mirror FTP hierarchies or only those files that have changed. Wget has been designed for robustness over slow network connections; if a download fails due to a network problem, it will keep retrying until the whole file has been retrieved.
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.