SoundCloud is a free tool for creating and sharing sound tracks. On Monday I included it in my list of alternatives to Aviary. Today, I showed it to some teachers at the Bancroft School in Massachusetts. When I showed the option for inserting text comments into the sound tracks a teacher spoke up with an idea for using Sound Cloud in a world languages course.
The suggestion the teacher made was to have students record spoken tracks on Sound Cloud and share them with her. Then she could use the comment feature to provide feedback that is tied directly to each student's recording. The comments could be tied to the exact second at which a student pronounces something incorrectly, uses the wrong verb form, or to praise a student for pronouncing a new word particularly well.
SoundCloud allows you to have up to two hours of recordings stored in your account at one time. After that you need to either delete an old recording or upgrade to a paid plan.