http://arzamas.academy/ – On this site you can find courses about Russian literature and history. My favourite http://arzamas.academy/courses/17 But it can be difficult for beginners. http://pikabu.ru/ – it's Russian 9gag\reddit https://meduza.io/ – I'm read news there https://thequestion.ru/ – also I like this site with any interested questions and answer professionals, like a English Quora