VoiceThread
"A VoiceThread is a collaborative, multimedia slide show that holdsimages, documents, and videos and allows people to navigate slides and leave comments in 5 ways - using voice (with a mic or telephone), text, audio file, or video (via a webcam). Share a VoiceThread with friends, students, and colleagues for them to record comments too." Fee is $60/year or $10/month
xtranormal
Create animated videos. A small fee ($10) allows you to use many different characters and places.