Links

General Links:

https://mahjong.guide/ – Strategy Guides
http://tenhou.net/ – Play online against other human players
http://mahjong-ny.com/features/playing-online-tenhou/ (basic guide for Tenhou in English)
https://mahjongsoul.yo-star.com/ – Riichi Mahjong game Web/Mobile

Learn to Play Riichi:

A Beginner’s Guide to Riichi Mahjong
http://www.gamedesign.jp/flash/mahjong/mahjong_e.html – Flash game for practicing against CPU players
https://www.youtube.com/watch?list=PLPBLBlC-7G3s92GyGOprSmZ1mqgh0U0DI&v=lZxwAxlqexY&feature=emb_title – LightGrunty learn to play Riichi Mahjong videos on YouTube

Basic / Intermediate Strategy Guide:

https://dainachiba.github.io/RiichiBooks/