Resources

WordPress Ecosystem
Sites with News About WordPress and Websites
Themes to Look At
Colors

Rapid Tables — color names and numbers

Rapid Tables shades of Green

CSS

CSS Zen Garden

Image Sizes

For WordPress blog posts, Featured Images should be 1200 x 628px, about 200 kb, and in the formats .jpg, .png (and maybe .webp).

Webmaster Tools

Find out who is the web host.