Entertainment:

Reddit

https://www.reddit.com/

Facebook

https://zh-hk.facebook.com/

Youtube

https://www.youtube.com

Instagram

https://www.instagram.com/?hl=zh-hk

Learning:

Cool maths games

https://www.coolmathgames.com/

Khan academy

https://www.khanacademy.org/

Coursera

https://www.coursera.org/?ranMID=40328&ranEAID=TnL5HPStwNw&ranSiteID=TnL5HPStwNw-pMvd0D.zlayZGhoeBCav0Q&siteID=TnL5HPStwNw-pMvd0D.zlayZGhoeBCav0Q&utm_content=10&utm_medium=partners&utm_source=linkshare&utm_campaign=TnL5HPStwNw

Maths is fun

https://www.mathsisfun.com/

Sports:

WWE

https://www.wwe.com/

MLB

https://www.mlb.com/

NBA

http://www.nba.com/#/

Golf

https://www.golf.com/