Chess Training: Fast, Free, For everyone.
Effective resources at your fingertips:
Along with written articles you can watch descriptive YouTube videos filled with examples and explanations. With 200+ videos, and more uploaded every 48 hours, you will learn all sort of chess topics ranging from openings to endgames, and everything in between.
Take a structured approach to master the Caro-Kann, Nimzo-Indian, Sicilian Dragon, and King's Indian. Courses are filled with hundreds of minutes of instruction, clear and concise ideas, helpful recommendations, master game examples, and PGN files.