http://www.discountmags.com/promos/customerap2014? -working again
https://www.rewardsurvey.com -register and take the survey to get $20 in rewards. With that reward you can get one of these subscriptions: Glamour, Details, Fast Company, Inc., Essence, W, Wired, Entrepreneur, Vinidades, Brides, Cigar Aficionado, Self, Shape, Tv Y noveles, Wine spectator, Forbes, Golf World, Siempre Mujer, Golfweek, The Economist, and Wall Street Journal. You can also enter 5 emails to get $15 more in rewards. You can do that once a week.
-Update-there is a new survey available
http://www.totalbeauty.com/content/blog/mind-body-beauty-magazine? -they mention here that it can contain samples