A study decided to categorize the subjects of Twitter1. The classification includes "normal conversation", "News", “posts inúteis”, "Publicidade" and "spam".
According matter Telegraph, The result surprised the company, that said not to expect normal conversations were loud and advertising was low.
Source: GigaBlog do UOL Technology
And to resolve the issues raised in categorizing “studies” will certainly include this in the category of useless, agree?