Links

SITES TO DOWNLOAD FROM

This site is great for searching for all kinds of brushes! If you have a cerain kind of brush in mind that you want, go here first!
http://browse.deviantart.com/resources/applications/psbrushes/

This is another site I've found! it has a lot of other things besides just brushes too! For instance, gradiants, patterns, styles, shapes, etc. I havn't done much with it yet, but I will experiment with it and tell you how it goes!
http://www.brusheezy.com/

SKY BLUE SKY

Sky Gradients: http://www.brusheezy.com/Gradients/3046-15-Realistic-Sky-Gradients


Cloud Brushes:  http://www.brusheezy.com/Brushes/10710-Clouds