Walled gardens are increasingly common on the internet nowadays. From social media services to online newspapers, many content managers charge subscription fees for the privilege of viewing their productions. Consumers often find the practice frustrating, but that's just the way the internet now works. After all, walled gardens are a proven method for monetizing exclusive content, and these publishers might not be in business for long without them. But the times, they are a-changin'. Content creators are ex ...