Think Visibility 2009 - Accessibility and Disability - A History of Innovation, Artur Ortega, Yahoo! Think Visibility 2009 http://www.thinkvisibility.com/ There is a lot of talking about making our content visible and to increase our audience. But we usually forget that SEO is only a way to make our content accessible to a search engine who is blind and deaf. Search engines can't see our images only their associated descriptions, they don't understand audio and they can't watch videos. They need caption and description of audio and video. In my talk I took a step back and looked how accessibility and disability contributed to innovation and how a change of thinking made products accessible and of general use for everyone - especially in our offices.