Peak - from MetaLab. Nice newsfeed
HCD Toolkit (v2 - Sept 2014) | A step-by-step guide to the elements of human-centered design | by IDEO.org. The UX Blog podcast is also available on iTunes.
Complete Pantone ink color chart. Useful when redecorating, too. (Click the picture to see the full chart. These are just edge colors.) #Arts Design
Flat UI colors palettes
Dribbble - flattastic-color-palette.png by Vlade Dimovski