Stan Winston School are sharing a free Photoshop character design tutorial by Dan Luvisi.
Free Photoshop Brushes
Several professional artists have made available their Photoshop brushes for free.
CGschool - Arch-Vis Training in 3ds Max, Photoshop and V-Ray
CGschool provides world-class architectural visualization training in 3ds Max, V-Ray and Photoshop.
You Found Me - Timelapse
Check out this timelapse of Cezar Brandao's recent sculpting livestream.