Useful Guideline in Making an application for a Canada ETA
http://thecoolcanadianetablog7325.jigsy.com/entries/general/making-an-application-for-a-canada-eta-easily
The Canada eta is needed by individuals who will be visiting Canada soon. If you will be riding through an airline to reach the country, you have to get the ETA. It is the short term for Electronic Travel Authorization,