Social commerce is a subset of e-commerce that involves using social media and applications to allow online shoppers to network and collaborate during the shopping process. It encompasses ratings, reviews, deal sites, and social shopping malls/stores to assist both retailers and customers through the five stages of the shopping process: problem recognition, information search, alternative evaluation, purchase, and post-purchase evaluation. Strategies for social commerce include sharing tools, recommendations, reviews, testimonials, user galleries, pick lists, popularity filters, and forums.