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http://www.accessify.com/tools-and-wizards/accessibility-tools/favelets/quick-page-test/

While there are some excellent accessibility toolbars that you can add to your browser, and also numerous online validators that you can use, sometimes the wealth and breadth of the tools on offer can actually be a bit overwhelming.

The Quick Page Accessibility Tester (oh for a more catchy name!) is bookmarklet/favelet that you can click on at any time which will give you a quick analysis of any web page. It highlights definite issues with your page, warns about possible issues and also highlights areas on the page that might benefit from some ARIA enhancements.

Captioning

http://cnice.idrc.ocad.ca/tools.php

This open source tool was developed by Ryerson University's Centre for Learning Technology as a way to further explore modality translation concepts examined in the CNICE project. The tool enables individuals with no professional training to include captions and video descriptions in their online audiovisual content. This tool has been previewed by professional video describers and was very positively received. Download CapScribe.

CapScribe System Requirements:

• Macintosh G4 or G5 with Mac OS X 10.3 and later
• 500 MHz PowerPC G4 processor or greater
• 512 MB RAM or greater
• 100 MB available disk space

Flash Captioning Tool

The flash captioning tool was developed by marblemedia for deafplanet.com. Flash enables online video to have high quality without making excessive bandwidth demands, however, a captioning tool was not available for this format. The flash captioning tool enables developers to control the captioning environment, determining the placement, font size, colour, etc, while at the same time not sacrificing user control. Download the Flash Captioning Tool.