Soundcloud is a tool for engaging learners actively in listening by adding questions and prompts at particular points in the audio. So it allows for reading, writing as well as listening.
You can upload up to two hours of audio material for nothing and share the tracks with your learners with questions or prompts at specific points in the recording. As with YouTube you can keep these tracks private and share them only with your learners.
What’s also nice about Soundcloud is that you can attach an image to the audio to help learners predict the content of the audio before they listen.