By: kelbytv.com/photoshopkillertips/
Creating a layer style to darken bright skies.
http://kelbytv.com/photoshopkillertips/2010/03/04/creating-a-layer-style-for-skies/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+PhotoshopKillerTips+%28Photoshop+Killer+Tips+%28Video%29%29&doing_wp_cron