- Bernardo Heynemann wrote an article detailing this at Scaling Thumbor;
- Yipit has detailed how they scale thumbor at their engineering blog;
- Square also posted at their engineering blog about how they generate dynamic images with thumbor;
- 99 Designs also has some info on their architecture using thumbor and amazon at their engineering blog.
- Threadless wrote about how thumbor is enabling their mobile app to show proper thumbnails even when facing original images meant for printing in their engineering blog.