Abstract: Implementations of enhancing privacy and anonymity for users of a computer system are provided. For example, selective anonymity for one or more users may be provided in which the one or more users may be anonymous or not, with various degrees of anonymity in between. A “vault” or other information repository may be used to save information (e.g., all information retained, all or a portion of privacy-related or personally-identifiable information) about a user that can be accessed by the user to see, reset, and or delete all or a portion of the information that is saved on the system. Further, “last known location” information may be kept, such that, in some implementations, the last known location (or a limited number of most recent locations) of a user may be kept such that historical information and/or a route of a user is not stored on the system.

Abstract: Systems, devices and methods are provided for solving technical problems related to communicating between two or more unrelated mobile devices based on location without needing contact information for the unrelated mobile computing devices. In various implementations, the service is adapted to use a common user base for a location-based matching process. In some implementations, a rough order of magnitude is maintained for users until the user is identified as a potential responder to a location-based request at which time a location request may be made to a mobile computing device. Further, parallel location based requests, such as surveys, may be performed.

Abstract: Systems, devices and methods are provided for solving technical problems related to communicating between two or more unrelated mobile devices based on location without needing contact information for the unrelated mobile computing devices. In various implementations, the service is adapted to use a common user base for a location-based matching process. In some implementations, a rough order of magnitude is maintained for users until the user is identified as a potential responder to a location-based request at which time a location request may be made to a mobile computing device. Further, parallel location based requests, such as surveys, may be performed.

Abstract: Systems, devices and methods are provided for solving technical problems related to communicating between two or more unrelated mobile devices based on location without needing contact information for the unrelated mobile computing devices. In various implementations, the service is adapted to use a common user base for a location-based matching process. In some implementations, a rough order of magnitude is maintained for users until the user is identified as a potential responder to a location-based request at which time a location request may be made to a mobile computing device. Further, parallel location based requests, such as surveys, may be performed.