I received an email today about some important changes in the terms of service for Zinio magazine subscribers. On the benign level, you can now enable your iPad to automatically download issues for you. But on the more major level, Zinio has "enabled" continuous service for "most magazines" on your behalf. What this means is that when your initial subscription expires, Zinio will automatically renew it for you (and bill you at whatever price it wants!) without asking. This used to be available as an option; you could choose it or you could choose a standard subscription. What they've done...