Right now you can get free magazine subscription like Dwell and Popular Science from AdPerk.com.  You must register and watch short videos to get credits to claim you free magazines.  Some other magazines that should be available soon are  Ode, Alternative and Radar.  Looks like an interesting business plan although I don’t know how long these freebie sites are going to last.

"One of my favorite places to read my magazines"

From AdPerk

"AdPerk rewards you with free magazines simply by watching videos.  No credit cards, no hassles, no strings attached.  Each issue can be earned in less than a minute.  Why magazines?  Because what you read says a lot about your interests.  Advertisers want to more deeply engage and connect with you – and good video does this"