Audacity is free, open source, cross-platform software for recording and editing sounds.
Gliffy.com is a web-based diagram editor. Create and share flowcharts, network diagrams, floor plans, user interface designs and other drawings online.
Using Web Assign to provide online homework students also have access to READ IT where they can click on this for a problem and Web Assign will take them right to the ebook version of the text book where it ...
Create and play quizzes, discussions or even surveys using any device with a web browser.