Glamour. Cosmo. SELF. Ladies' Home Journal. Vogue. In an industry that has been in a downward spiral for years, these magazines--and other women-focused magazines like them--have not only retained their readership, they've increased it. Every month, five million-plus women peel back the slick cover of their favorite magazine to thumb through pages filled with tidings and advice about fashion, beauty, sex, relationships, dieting, health,...