So far, I have made videos of my students' speeches, but am having trouble uploading them to dropbox. The upload time is unending, so it's quite discouraging. I'm still looking for a way to share the videos with the students online.I have discovered a few good listening apps and will try them with my classes and post the results.
Heidi;did you try Facebook? You can create a FB Group with Video Albums. Videos can be uploaded and comments can be posted to them.