Newsstand is a pre-made folder that provides iOS 5 users with an easy way to access digital subscriptions. But it's a bit annoying for the folks who don't use it, as its icon can't be placed in other folders. Luckily, there's a workaround.
There's a nice little tidbit floating around the web from The Coding Massacre regarding Newsstand. As it turns out, there's a small glitch in iOS that allows you to place the icon in a folder without the need to jailbreak...