1. A computer-implemented method for determining a user's value across a plurality of platforms, the method being implemented in one or more physical processors, the method comprising: uniting a first user's account in an online game across multiple social networking platforms including a first social networking platform and a second social networking platform, wherein the first user can access the online game through the first social networking platform or the second social networking platform; determining a first value of the first user's interaction within or related to the online game for a first metric for the first social networking platform, wherein the first metric for the first social networking platform reflects revenue generation for an operator of the online game by the first user when accessing the online game through the first social networking platform; determining a second value of the first user's interaction within or related to the online game for the first metric for the second social networking platform, wherein the first metric for the second social networking platform reflects revenue generation for the operator of the online game by the first user when accessing the online game through the second social networking platform; performing an incentivizing action to entice the first user to access the online game through the first social networking platform rather than the second social networking platform based on the determined first and second values.