I’ve been a bit obsessively looking for ways via The Internet to improve my Chinese in a low-effort yet regular way, and here are the resources I liked! Feel free to comment with what you’ve found useful for you!

哆啦A梦 Doraemon
Japanese manga series, in Chinese, 300+ video episodes available, 20 minutes
[Tudou]

德国之声中文广播 Deutsche Welle Chinese Podcast
Daily news, twice daily, audio only, 30 minutes
[Podcast details] [Podcast link] [More from DW]

异想电波 fancyradio podcasts
Stories of various genres including horror, sporadic publishing, audio only, variable duration
[Website]

新闻播客 BBC Podcast of the day
Daily news and interviews from reporters based in Asia, audio only, variable duration
[Website] [Podcast link]

麻省理工《科技创业》中文网 MIT Technology Review, Chinese version
Tech articles in Chinese and corresponding articles in English
[Chinese version][English version]