Voki is a tool that allows you to create online avatars. These are great if you want to explain a process or even walk your students through an assignment online. You get to choose the hair, skin colour, accessories even the sound of the voice. This is an excellent way to nudge your students in the right direction for any online task or activity. It only takes about three or four minutes to put your voki together. You could even embed these into you class wiki or website. These are lots of fun and add another level of assistance for the students.