Creative Commons Licensed photos from Women of Color in Tech
link
WOCinTech Chat | Flickr
Learn Git Branching
Great visual resource for newcomers and those interested in understanding more advanced functionality.
From data to Viz
Great breakdown of which types of visualizations to use for data.
Turning Type Sideways
Fascinating breakdown of how we perceive horizontal vs. vertical lines.
Dimensions.Guide
A comprehensive reference database of dimensioned drawings documenting the standard measurements and sizes of the everyday objects and spaces