Sources for Transformers

Transformers Information

Comics!

Atomic Robo

He doesn’t transform but this is still one of my favorite comics. Highly recommended and completely free online!

Astro City

This one’s not free, but two of the best issues are:

Astro City #1
The first ever Astro City comic, this is the story that introduced the unique viewpoint of this series.

Astro City #0.5
If you only ever read one comic book, read this one.