Largely in dreams a newspaper will suggest knowledge that is in the public domain.
It might be information that we require in order to make sense of the world around us, or something that is specific to us.
A tabloid newspaper in theory may suggest sensational material, whereas a quality one would suggest better researched data.
A sunday newspaper indicates that we have the ability to assimilate the knowledge we need in periods of rest and relaxation.
A local newspaper signifies that the facts we require are close to hand. You might like to consult the entries for communication and media.