Jmol is a Free, Open Source molecule viewer and editor. It is a collaboratively developed visualization and measurement tool for chemical scientists. Jmol is an active project, and there are new features being added to it on a daily basis. Users are encouraged to modify it to fit their needs and to contribute their changes to the project.
Asymptopia Crossword Builder (Math/Text) is an application that runs in any modern Web browser, but does not require an Internet connection (if it is installed locally). The application was designed to allow teachers to quickly produce well-designed, challenging activities. The application features a configuration panel where the user can either enter their own word-hint pairs, or generate math-crossword problems via a single button. The math functionality generates word:hint pairs like: "four:7/x-3/8=11/8", where the hint corresponds to the problem, and the student would write the letters "four" in the corresponding boxes of the puzzle.
OpenBEXI is a powerful WYSIWYG HTML/HTML5 editor. You can edit and see your text, pictures, and widgets exactly as they will appear once published with the built-in publisher to your hosting provider. OpenBEXI integrates pictures, videos, flash browsers, simile timelines, chart-flows, dynamic charts, a DOJO toolkit-like editor, calendars, form input validation, and grid editors that allow developers to quickly develop intelligent Web-based applications.