Did an hour long mixed tactics training session at chesstempo.com

How To Learn Chess As An Adult (or, how I went from 300 to 1500

OMGChess: August 2015

ChessTempo] How long should I spend on a tactics problem? : r/chess

As a teenager who basically knows the rules of chess and not much

Tactics Time!: 1001 Chess Tactics from the Games of Everyday Chess

Improve Your Chess Tactics: 700 Practical Lessons & Exercises

An elegant mate in 3 : r/chess

Grandmaster Guide to learn and improve chess tactics

Better Chess Training: How to Improve Your Tactics

Chess Strategy Lesson # 121

What is the most effective way to increase chess rating from 1400

How should I study chess tactics? - Quora

OMGChess: August 2015