Research by @comScore found that 45% of @Snapchat users among US internet users are 18-to 24-year-olds, while older millennials 25-to 34-year-olds account for 26% of US snapchat users. 18-to 24-year-olds do not represent 30% of any other social network studied (Tumblr, Vine, Instagram, Twitter, Google+, Facebook, Pinterest, and LinkedIn). Furthermore, @CowenandCompany found that 18-to 29-years-old users spend an average of ~20 minutes per day on Snapchat. Of the US senior ad buyers who Cowen polled in Dec. 2014, 19% intended to allocate money toward Snapchat in 2015 (second to Instagram (30%)). - Link