I've used the "Twitter Activty Module" ( https://github.com/mcharnelli/moodle-module_twitter ) that publishes any Moodle's course activities in a Twitter account. It's pretty good because my students can follow that twitter account and get noticied about new material or schedule changes instantly.
Twitter plug-in for Moodle
This discussion has been locked because a year has elapsed since the last post. Please start a new discussion topic.