Girls’ Night in is a members-only Facebook group for LA’s hottest and coolest women, who whisper and giggle between themselves. And while its ranks are small by internet metrics, these women are highly engaged. So what’s got them sharing their deepest secrets with 1,500 friends they’ve never met?

From waffles and ice cream to bagels and burgers, multi-coloured grub has become a culinary phenomenon, responsible for hours-long queues at stores and a deluge of social media posts. But what exactly is the appeal of rainbow food? And could participating in this fad be bad for brands?

Online influencers have shaped the way people interact with brands since the advent of social media, adding context to products outside of typical advertising channels. But the idea that more followers equate to more consumer sway is not always true. How exactly is influencer marketing evolving?

Brands have long used famous faces in adverts to reliably boost the awareness and sales of their products. But what is it about star endorsements that make people stop and pay attention? And how is a desire for authenticity changing the expectations for celebrity partnerships?