Free Items Database maintains a list of websites offering free items to the public.
Categories of materials include:
Arts & Crafts (paintings, arts and designs, vintage collection, craft projects, and other works of arts)
Books & Documents (eBooks, manuals, newspapers, magazines, printed presentations and various documents)
Media & Entertainment (films, radio and television programs, audiobooks, music, photography, and other audio-visual items)
Many websites listed may also include all or combination of the above categories.