images
7 CSS Image Effects For Making Awesome Vintage Photos
The multiplied overlay plus the filters create a wide variety of effects.
LeiaPix Converter
This tool creates a “depth map” to add parallax motion to static images.
Pixelmator
I’d really like an image editor that has Automator actions. This one does, but I can’t afford it right now. It’s going on the list!
Photo editor online / free image editing direct in your browser – Pixlr.com
This editor is nice because it does all the standard things to images, but also lets you start from scratch and use layers.
Perfect Full Page Background Image | CSS-Tricks
I needed a technique like this on a project last year… eventually managed to hack something together, but this is definitely going in the reference files.