Social network hosting service
A social network hosting service is a web hosting service that specifically hosts the user creation of web-based social [networking service]s, alongside related applications. Such services are also known as vertical social networks due to the creation of SNSes which cater to specific user interests and niches; like larger, interest-agnostic SNSes, such niche networking services may also possess the ability to create increasingly niche group (online [social networking)|group]s of users.