Social gifting apps let users send physical items or gift cards via Facebook or email, combining social media marketing and e-commerce. While some types of gifting platforms are meant to be used by big retailers and national brands, a number of new services have popped up that local merchants can use to fuel in-store transactions and increase their online presence. Here are five social gifting platforms perfectly tailored for SMBs.1. Plumfare Plumfare is a social gifting app focused on food and photography. It allows users to take a photo of an experience they’re enjoying — devouring a delicious slice of pizza, say — and send that photo to a