clarkesworld, We're still trying to close up the gap in digital subscriptions caused by Amazon shuttering their subscription program last year. If you are a former Amazon subscriber looking to sign back up or someone joining for the first time, your options can be found here:
https://clarkesworldmagazine.com/subscribe/
(We were unable to contact former subscribers because Amazon wouldn't tell us who they were. It made quite a mess for a lot of magazines.)