
http://www.readability.com/articles/1jq73z1x

Many online course instructors use announcements to communicate on a regular basis with the learners. Some instructors create introductions to modules using video, audio, or presentation tools. Leveraging google voice for “on-the-fly” podcasts allows instructors to be able to quickly and easily record their announcments so that learners can hear the announcement coming directly from their instructor to give the course a more personalized tone.