The Zinio digital magazine subscription service has a new flash sale, coupon code FLASH40 gets you 40% off the prices of these eligible subscriptions. The coupon only works on subscriptions, not individual issues.
Of camera and photo interest, the following magazines are participating:
+ Practical Photography (13 issues, $15.68 before coupon)
+ Practical Photoshop (13 issues, $20 before coupon)
+ Photography Week (52 issues, $20 before coupon)
+ Digital Camera World (13 issues, $60 before coupon)
+ PhotoPlus : The Canon Magazine (13 issues, $60 before coupon)
+ N-Photo: the Nikon Magazine (13 issues, $65 before coupon)
+ other related magazines such as Image, Art-related ones, Maximum PC, Linux and Mac Format, T3, MacLife, Drone 360, ImagineFX, etc along with fashion, sports, nature, etc
+ eligible magazines show coupon eligibility on their individual pages
+ search for them or go through the eligible subscriptions page
You can read Zinio digital magazines in a web browser, or using their iOS, Google Play or Windows apps. The Windows app does not get as much attention/features as the iOS/Android apps and has a horrible review average with 200+ ratings posted.