Right click on the layer you want to fade out.
Select blending options.
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Question
I was messing around with something in Photoshop, and what I was wondering is how or if there was a tut on ...well I dont know what you would call it, but when you take a picture, then add another one on top and fade it out, to where its just barely there... so whatever thats called, um, how the hell do you do it? :)