Advice needed: how to get your music / art noticed on the internet!

A person who is close to me is a wonderful singer and has recorded some music but has no idea how to get it out into the world. They are too shy to go looking for performance opportunities. They also really don't care about making any money from this, but they would like people to hear their songs. Do any of you SWeeps know anything about reaching an audience on line?

Asking also for friends who are into storytelling. Similar situation -- not expecting profit, just looking for online listeners.