In his latest post, Tony Lambino makes an interesting argument about pundits and social norms. He says that pundits' comments, for example on statements of public figures, are a manifestation of the social norms of a society. Punditry is a fascinating phenomenon and a recent development in the mass media - and might have changed the media landscape quite significantly.
Pundits discuss current affairs from their own point of view, often together with or in contrast to other pundits. Pundits can be experts, such as academics, but often journalists stylize themselves to be experts on political and other issues. It seems debatable to me whether punditry it is indeed part of the media's role in democracy.