I have used VoiceThread and Photostory with my students and even third graders are very competent in creating multimedia with both. I haven't heard of the ability to insert a PhotoStory video within VoiceThread - will have to look into that.
I set up Wikispaces for an upcoming collaborative project with the 4th graders. Wikispaces now has the ability for teachers to directly and quickly import their own students' usernames and desired passwords (or generate ones passwords for you). This feature was just introduced. You have to be careful with services, as many require student emails and other information which makes them in violation of the COPA law for kids under 13. VoiceThread has a free upgrade for teachers as well. Another good (but plain) service is Blogmeister, which requires all student contributions to first go through the teacher.
Kids loved the VoiceThread - seeing images posted of theirs and hearing their voices. I could see a lot of possibilities for art teachers, encouraging kids to comment on artwork, either other students' or by famous artists.
>On Saturday, December 27, 2008, at 08:38AM, "play2cre8" <firstname.lastname@example.org> wrote:
>>I have used VoiceThread with my writing classes - the kids love it...
>>I have posted images and they have responded to them, and the students
>>have each done their own VoiceThread based on the Visual Griots
>>program. I think that soon VoiceThread is supposed to have the
>>capability to incorporate PhotoStory video into the thread.
>>The kids love VoiceThread but we run into a lot of problems when we
>>are all uploading at the same time in the lab.
>>I really like the ease of our class wiki for sharing art, having the
>>kids respond and encouraging discussion. The wiki is easier to use -
>>not as fancy, but still lots of possibilities. Have you considered
>>creating a wiki page? Wikispaces upgrades for teachers (meaning that
>>it is closed to everyone but the class - private. Kids can also use
>>both wiki and VoiceThread without having an e-mail address - but
>>wikispaces has to set it up for you... you can create logins and
>>passwords for both.