Comments:GeoGebraTube
From GeoGebra Manual
It is possible to search GeoGebra via address bar
Chrome
- navigate to http://www.geogebra.org
- open Settings, search for "Search machines" and set a keyword for www.geogebra.org
FireFox
- navigate to http://www.geogebra.org
- in the "Search field" you will see an option to add "GeoGebra Materials" as search provider
Internet explorer
Install GeoGebra search addon to Explorer: http://www.iegallery.com/Addons/Details/16515