Fig. 4From: Online reach and engagement of a child nutrition peer-education program (PICNIC): insights from social media and web analyticsReach on Facebook. Weekly reach of the PICNIC Fb Page content in relation to the total number of Page followers over time. Organic Reach: the weekly number of unique users who saw any Page content (typically posts) without any paid distribution. Paid reach: the weekly number of unique users who saw Page content through paid distribution (in this case, ‘boosted’ posts). Non-viral Reach: weekly organic reach to people connected to the Page (such as Page followers or fans). Viral Reach: weekly organic reach to people who saw Page content because of their friends (who for instance liked the Page, or shared or engaged with a PICNIC Page post). Fb, Facebook; w, week of the yearBack to article page