https://www.rewardsurvey.com -register and take the  to get $20 in rewards. With that reward you can get one of these subscriptions: Inc, Fast Company, Latina, Outside, Poder, AFAR, Cigar Aficionado, ESPN, Forbes, Martha Stewart, Siempre Mujer, TV y Novelas, Golfweek, Vanidades, Playboy, and Wine Spectator. You can use this link and enter 5 emails to get $15 more in rewards. You can do that once a week.
-Update-there is a new survey available