More cool effects with photoshop. I choose this not because it utilizes a ton of art principles but because it shows very basically how you can turn something so simple into something so fun. Could be a great magazine ad.
Band Photography: tips for taking promo shots that rock... I can see how that would be cool for different styles. But not for weddings. Up-the-nose-shots are unflattering to almost all body types. I hate when I see wedding photographers shooting in this angle.
The Human Side of Photography - 4 Tips for Natural Looking Portraits