HanSheng Chinese is an online learning platform for chinese with customized courses. It features Listening, Reading and Writing practices as well as a test for you proficiency-level and exams to test what you've learnd during lessons.
It features 3 main categories: Learning for HSK, Formal Learning and Learning for Kids - Learning for Business is announced. They are also working on a Podcast similar to Chinesepod called „Yep!Chinese“. There is an App available where you can practice your lessons. Also they habv an online community and special tutoring lessons that you can attend by spending points you earn by completing lessons.
And it’s for Free!