Audioboo is a free tool for creating audio messages to share on the web. Using Audioboo you can record messages on your mobile device using Audioboo’s free Android or iPhone apps. You can also record messages directly on the Audioboo website. Messages that you create can be shared by embedding your recording into a blog or website. You can also share messages by posting them to Twitter, Facebook, and Tumblr.
The Audioboo iOS app isn’t optimized for iPad use, but it works just fine on my iPad 2 when I tap the “2x” button. Students could use Audioboo to craft short audio blog entries. You can use the app to record and post instructions for students to listen to when a substitute teacher is taking care of your students for the day.