Evan Spiegel

While use of Snapchat's built-in marketing tools is growing, influencers really hold the key to deeper engagement on the platform.

New research suggests that Snapchat is now the most important to teens, but Facebook and Instagram are fighting back with expanded features.

Chat 2.0 is the headline for Snapchat's update, but brands should take note of a few additional changes that will affect them.

The fast-growing social/messaging mashup gets serious about providing real measurement options for brands.