Pages 145-146 of the Online Journalism Handbook talk about the differences between online and offline audiences, and the need to remain aware that contributors to social media platforms, while providing valuable extra voices, do not represent all possible voices.

Dr David Brake’s presentation on “UGC and Digital Divides” provides further illustration of this point, particularly when it comes to accessing information posted in countries with low internet penetration (note: those statistics will continue to change as internet penetration and social media use develops in all countries). See also my comments at the bottom of the presentation.