Quag is an interest-based social network created in Italy. On Quag, the interaction between users is generated based on the concept not of “friendship”, but of “common interest” or “affinity”. On Quag, the word “interest” covers as wide a range as possible: an interest can be a passion, a need, a problem, an area of study…on Quag we can discuss what really interests us with people who have something in common with us, who share our interests, passions, needs or problems.