https://www.t-nation.com/training/7-truths-about-strength-training- Jim Welder lists his 7 truths about strength training, as well as how to apply them to your own training.
http://yashathoughts.com/check-your-balance/- In this article Yasha Kahn offers a simple way to keep the barbell over your mid foot when squatting. If you have trouble maintaining your center of balance during the squat, make sure to give this one a read.
http://deansomerset.com/understanding-mobility/- A very thorough write up my Dean Somerset on just about everything you would want to know regarding mobility.
http://www.catalystathletics.com/article/1843/Adapting-to-the-Grind-Mental-Toughness-Visualization-for-We/- Weightlifting is a very mentally demanding sport. Those who are successful have trained both their minds and their bodies to adapt to the grueling training they undergo day in and day out. This article talks about how to use visualization to increase your mental capacity in order to train your mind to be at the same level as your body.