Emojis: Why We Love Them So Much and What They Mean
This long post on emojis dives into the emotions and motivations behind their use. If you're considering using emojis in your marketing campaigns (or already are), this is good information.
One research-based discovery: There's also a strong link between social power and emojis. Influential social media users put more emojis (and more positive ones in particular) in their posts than low status users.