Voki is another fun site that you can create an avatar and either record or type in text for it to say. This would be a great new way to do animal projects or biographies or various other things. You can only do a short clip though.
Here is my Voki I made to try it out.
Get a Voki now!
Blabberize is a second site that would also be great for animal projects, biographies, or just presentations where the kids are too nervous to speak up on their own. This one does not allow you to type in the text as Voki does however, students must record the audio themselves.
Here is my sample Blabberize: