Understanding Layer Masks In Photoshop
Nice explanation of using layer masks in Photoshop, with a clear example of why you would want to use them instead of other tools.
Blog posts
New Course + Quiz Template using the Power of Adobe Photoshop! « Rapid eLearning | Adobe Captivate Blog
How to create a Captivate template in Photoshop, including notes on all the elements needed and tips (like saving captions as BMPs)