Communication (from Latin commūnicāre, meaning "to share") is the act of conveying intended meanings from one entity or group to another through the use of mutually understood signs and semiotic rules.
Journalism refers to the production and distribution of reports on recent events. The word journalism applies to the occupation (professional or not), the methods of gathering information and organising literary styles. Journalistic mediums include print, television, radio, Internet and in the past: newsreels.
Living organisms including humans are social when they live collectively in interacting populations, whether they are aware of it, and whether the interaction is voluntary or involuntary.
As for modern Journalism, its not my business to defend it. It justifies its own existence by the great Darwinian principle of the survival of the vulgarest.
Oscar Wilde, The Critic as Artist Part I (1891), 
What a monstrous thing that a University should teach journalism! I thought that was only done at Oxford. This respect for the filthy multitude is ruining civilisation.
Bertrand Russell, in a letter to Lucy Martin Donnely (July 6, 1902).
The thorn in the cushion of the editorial chair.
William Makepeace Thackeray, Roundabout Papers, The Thorn in the Cushion.