阿里巴巴矢量图标库
Beautiful colored gradients
Free design resources, Mockups, PSD web templates, Icons
国内访问很不稳定，格调很高的照片图库，图片很精美
create QR codes for free (Logo, T-Shirt, vCard, EPS)
The daily color digest
Khroma is the fastest way to discover, search, and save color combos you'll want to use.
