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[Eric Reagan]

Here are 3 intro articles on the technical basics of exposure:

Lens Speed and Aperture http://www.photographybay.com/2010/01/02/photography-basics-lens-speed-and-aperture/

Shutter Speed http://www.photographybay.com/2010/01/27/photography-basics-shutter-speed/

ISO http://www.photographybay.com/2010/08/28/photography-basics-iso/

You can find more educational articles here:

http://www.photographybay.com/learn-photography/

[forkboy1965]

Funny.  My local camera store guy and I were playing around with a grey card, our camera's histograms and a flash-based portable lighting kit just this weekend in terms of working out a proper metered exposure.

Must be something in the water.