https://en.wikipedia.org/wiki/Demonstration
Site
http://www.demo.com/
Co
http://www.demos.co.uk/
Org
http://www.demos.org/
Product
http://www.getproductdemonstrators.com/
Group
http://www.demosgroup.com/
Tube
https://www.youtube.com/results?search_query=demonstration
Slides
http://www.slideshare.net/search/slideshow?searchfrom=header&q=demo
Site
http://www.demo.com/
Co
http://www.demos.co.uk/
Org
http://www.demos.org/
Product
http://www.getproductdemonstrators.com/
Group
http://www.demosgroup.com/
Tube
https://www.youtube.com/results?search_query=demonstration
Slides
http://www.slideshare.net/search/slideshow?searchfrom=header&q=demo