The July issue of "Vanity Fair", which featured Caitlyn Jenner in her first public appearance after her gender transition, predictably generated an enormous amount of social media conversation. What's a bit more surprising: this buzz prompted many people to actually, like, read the magazine -- the print version (gasp).

A Brandwatch study, based on a survey of 32 high-end brands, found that luxury brands have virtually no voice on social media, as 99.6% of Twitter content mentioning luxury brands is posted by consumers, leaving a tiny sliver that comes from brands.