Few things I would like to draw your attention to:
1. Firefox is reporting that certain parts of the page are not being served over HTTPS.
2. In the "My audio articles" section why do I need to enter the first paragraph of the article when I'm already submitting the link to the article?
3. The side menu doesn't close on the mobile site when I tap the drawer again. This was the only thing I found wrong about the UI.
I hope these will help you with improvements. Congratulations on getting Listle live. I really like the simple design of the site. I'll test more functionality tomorrow (it's past midnight at my place).