A social networking platform having users grouped into multiple groups of residents based on users' geographical areas, each group representing a virtual local community representing the corresponding geographical area. Each resident is identified by a resident identifier having a common local community identifier that uniquely identifies the corresponding geographical area in which the residents actually reside. Each resident is provided a three-dimensional (3D) homepage having items resembling items owned by the resident in an actual resident home. Some of the items decorated in the 3D homepage can be activate to invoke an authorized agent which will access a goods/service provider on behalf of the resident for purchasing further items. An authorized agent can be installed and available to a virtual community only if the residents allow. Based on the purchase, a resident is rewarded with credits for future purchases and ownership shares of the authorized agent.