This is mostly a video blog but once in a while I come across a Photoshop tutorial that creates a useful effect that's easy to create. This month in EventDV magazine, Lance Gray, the chief creative pixelmonkey at PixelPops Design, LLC demonstrates how to simulate narrow depth of field in Graphic Thoughts: Faking Depth of Field.
While it used to be a free magazine, EventDV recently shifted to a paid subscriber only for its print publication. I've found it to be among the most useful of the video magazines I receive. For me it's well worth $17.95 per year.