Abstract: A search engine system capable of displaying indicative information to a user from searches performed by entities connected directly or indirectly to the user, where the system includes at least one host computer processor connectable to one or more network(s), a database accessible over the network(s), a plurality of data input devices connectable to the network(s) the search engine being accessible over the network(s).

Abstract: A method of forming unique, private, personal, virtual social networks on a social network system that includes a database storing data relating to corresponding user entities. The method includes: a first user entity sending an invitation to a second user entity, recording in the database the second user entity as a direct contact of the first user entity and determining that third user entities, directly connected to the second user entity, are indirect contacts. A unique, personal, social network formed from direct and indirect contacts is thereby created for each user entity. Each user entity is able to control privacy of its data with respect to other user entities depending on the connection factor to that other entity and/or that other entity's attributes. Each user entity is able to take the role of provider or participant in applications where the provider provides an item or service to the participant.

Abstract: A method of forming unique, private, personal, virtual social networks on a social network system that includes a database storing data relating to corresponding user entities. The method includes: a first user entity sending an invitation to a second user entity, recording in the database the second user entity as a direct contact of the first user entity and determining that third user entities, directly connected to the second user entity, are indirect contacts. A unique, personal, social network formed from direct and indirect contacts is thereby created for each user entity. Each user entity is able to control privacy of its data with respect to other user entities depending on the connection factor to that other entity and/or that other entity's attributes.

Abstract: A method of forming unique, private, personal, virtual social networks on a social network system that includes a database storing data relating to corresponding user entities. The method includes: a first user entity sending an invitation to a second user entity, recording in the database the second user entity as a direct contact of the first user entity and determining that third user entities, directly connected to the second user entity, are indirect contacts. A unique, personal, social network formed from direct and indirect contacts is thereby created for each user entity. Each user entity is able to control privacy of its data with respect to other user entities depending on the connection factor to that other entity and/or that other entity's attributes. Each user entity is able to take the role of provider or participant in applications where the provider provides an item or service to the participant.

Abstract: The present invention provides a system providing one or more users with a private personal network formed from contacts with one or more entities known directly or indirectly to the user and allows a user to apply a selective interaction with the entities for a predetermined activity by controlling the entities to be included according to their degree of separation from the user.