Sites you may want to check out:
The Bulletproof Musician – a website about overcoming performance anxiety
Memorising Music – a blog that explores how musicians memorize music
The Memory Map for Music – an introduction to visual mapping for music
Uncommon Sense Pedagogy – tips and insights about healthy movement patterns
Neuroscience for Kids – great website by University of Washington faculty. Aimed at kids, but good for everyone
Julie Nagel’s blog on performance anxiety – Nagel is a graduate of Juilliard in piano performance as well as a practicing psychoanalyst helping musicians deal with performance anxiety. She has a unique perspective.