4Shared is a website dedicated to sharing what you have. There are various arguments with the legality of content and owners rights to distribution. After reading their ‘Copyright infringement’ section, all should be clear. Some uploads inevitably fall through the cracks and you are somehow able to download the latest issue of ’50 shades’ among many others. However this practice is not recommended and should not happen ;-P
In any case, there are tonnes of uploads and I have personally dug-up some items that I could not find elsewhere.