1. A method comprising facilitating a processing of and/or processing (1) data and/or (2) information and/or (3) at least one signal, the (1) data and/or (2) information and/or (3) at least one signal based, at least in part, on the following: an input from a device specifying one or more criteria to determine a context-based user group from among a plurality of other devices, the one or more criteria specifying one or more context parameters; at least one determination of one or more context values of the one or more context parameters associated with the plurality of other devices; at least one determination of the context-based user group based, at least in part, on the context values and the one or more criteria; at least one determination of one or more updates to the context values of the one or more context parameters; at least one update to the context-based user group in response to the one or more updates to the context values of the one or more context parameters; at least one determination of one or more actions available at the device relevant to the context-based user group; at least one determination to present a user interface for initiating at least one of the one or more actions, wherein the one or more updates to the context values occur while the one or more context parameters remain unchanged, and the at least one update to the context-based user group occurs in real-time with the one or more updates to the context values; and at least one determination of one or more structured queries based, at least in part, on the one or more criteria, wherein the determining of the context-based user group is based, at least in part, on application of the one or more structured queries to the context values.