Abstract: A method of providing a service includes receiving, from a user terminal, a first request to search for a service provider, a second request to display a newsfeed screen, or a third request to display a home screen; and providing a result corresponding to the received first, second, or third request. When the first request is received, providing of the result corresponding to the received first request includes providing a list of service providers searched for according to the first request such that a service provider recommended by more friends is set to have a higher exposure priority on the list. The friends correspond to other user accounts designated to have a first relation with a first user account which is the user's account.

Abstract: An example computing system comprises a communication interface configured to communicate with a plurality of different electronic transaction systems, a processor, and memory storing instructions that provide a recommendation engine. The recommendation engine is configured to receive, from a particular one of the electronic transaction systems, user information indicative of a particular user of the particular electronic transaction system, and access a data store that stores mappings between transaction data from the plurality of different electronic transaction systems and social graphs associated with users of the plurality of different electronic transaction systems. Based on the user information, mapping information is identified that maps a member identifier to transaction data indicative of an electronic transaction performed by the particular electronic transaction system utilizing the member identifier.

Abstract: A method of providing a service includes receiving, from a user terminal, a first request to search for a service provider, a second request to display a newsfeed screen, or a third request to display a home screen; and providing a result corresponding to the received first, second, or third request. When the first request is received, providing of the result corresponding to the received first request includes providing a list of service providers searched for according to the first request such that a service provider recommended by more friends is set to have a higher exposure priority on the list. The friends correspond to other user accounts designated to have a first relation with a first user account which is the user's account.

Abstract: Transaction data is obtained from sellers. The data identifies individuals and products or items that they have purchased from the sellers. Social network data is also obtained. It identifies a social graph for a plurality of different users. A mapping between the social graphs and the transaction data is generated to identify which items have been purchased by which individuals in the social graph of a given user.