Stranger social market: strong tool + weak social; basically it is a strong tool + weak social model. 2) Strong community + weak social Special Database products Reddit: Known as "the front page of the Internet", there are a large number of posts every day, forming a unique community culture. Steemit: The blockchain community, the social model of blockchain social networking. Video or news platforms such as Youtube and Newsbreak are Special Database not strictly social software, but there are also some social functions or attributes, which are imaginative in the future development. Strong tools + weak social products Venmo: Mainly focus on wallets and transfers, and cut into social. Pinterest: Cut into social with trendy Special Database products, photos, etc. Instagram: In the early days, it was demanded through photos and pictures, and strictly speaking, it also belongs to this model. 3. Analysis of social patterns for reference Strictly divided into social, there are only two, according to the classification of A16Z: acquaintance network (network) Stranger Social (marketplace) 1) Growth logic and essence are Special Database completely different Acquaintance Social: An information distribution network based on relationship chain. Which is one of the infrastructures of the modern Internet industry. Including IM, SNS, social media and other forms; the pursuit of the density and strength of relationship chain. Stranger Social: A social matching market (strangers) based on a certain demand, such as dating with strangers, and professional networking with recruitment; the Special Database pursuit of transaction/matching efficiency. 2) The landing points are different The place where acquaintances socialize: lies in the "relationship chain", through which extremely efficient information exchange and distribution is coveted by all major Internet giants, because it is a huge information distribution network; Dot: In "finding people", ie people Special Database matching. Model analysis of strangers' socializing: The two best-developed models are "dating" and "professional socializing". "Professional Networking": Professional networking represented.