1. An avatar is a personalized photo or graphic file that represents a computer user or a gaming user.
2. Someone may use an avatar in their personal life for a gaming such as a Wii user or online chatting websites where they do not want their real identity shown. A teacher or someone in the educational field might use an avatar to have better student participation and interactions with them in the virtual world. A business personal or company could use avatars to create a business game or a training program to better educate their employees and further their business.
3. Yes I have used an avatar before this but it was only on the Wii. I created my avatar so I could use it to compete in Wii games and interact with my other Wii friends.
4. Of the three website I liked Voki the best. First, the characters were the most realistic and had the most editing options. Second, they had many settings for your avatar to be in and you did not have to upgrade or pay to have any of the settings. Lastly, I found Voki the easiest website to save my avatar and share with other people and websites.