UX

Human Interface Guidelines and Visual Interaction.
Wikipedia: Human Interface Guidelines
52weeksofux
forms that work
Information architecture
Aza Raskin (Sohn von Jef Raskin)
Neville Brody
Windows User Experience Interaction Guidelines
asktog.com - Bruce “Tog” Tognazzini - an early and influential employee of Apple Computer
Intuitive Equals Familiar
Brad Woods’ Digital Garden

Farbharmonien

huetone
Adobe: Color
paletton
colrd.com
EasyRGB: Creates colors complements, harmonies and themes