The Freedom of the Press Act refers to printed media. The printed media needs a responsible editor, and the editor will be in charge. The same goes for the author of a book, for example. It's not those who have given the information that is in the book to the author, it's the author of the book who is responsible. That follows from the freedom of protection of sources.
These fundamental rules are extended into other media through the fundamental law of freedom of expression, including Internet and websites. In that case, it would be the person who has written the hate speech or the blog, for example, who will be responsible.