AudioMo was a month long audio challenge, normally held in November. In 2013 just to spice things up it was held in July.
In 2014 and the future, the month of AudioMo will be June. Yep June will be the home of AudioMo.
All you do is record audio every day during the month. Then just Tweet the link to that audio and add the #AudioMo hashtag.
Yep it really is that simple.