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.
Opera is a full-featured Internet tool, most notably a fully standard conforming Web browser. Opera includes pop-up blocking, tabbed browsing, integrated searches, and advanced functions like a password manager, mouse gestures, native Scalable Vector Graphics (SVG) support, an email program, RSS newsfeeds, and IRC chat. It is designed to be fast and highly customizable.
HTTrack is an easy-to-use offline browser utility. It allows you to download a Web site from the Internet to a local directory, building recursively all directories, getting HTML, images, and other files from the server to your computer. HTTrack arranges the original site's relative link-structure. Simply open a page of the mirrored Web site in your browser, and you can browse the site from link to link, as if you were viewing it online. HTTrack can also update an existing mirrored site, and resume interrupted downloads. WebHTTrack is a Web-based GUI for HTTrack.
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.
The Beartronics J2ME Libraries are a collection of utilities and applications for programming in the Java MIDP and CLDC environment. They include a full cHTML browser, a fixed-point math library, 3D vector graphics and animation, and a small SVG-like vector shape viewer with compact binary shape file format.