From MSDN, "To visualize business data against a geographical background, you can add a map to your report in SSRS or report builder."
From MSDN, "To visualize business data against a geographical background, you can add a map to your report in SSRS or report builder. The type of map that you select depends on what information that you want to communicate in your report. You can add a map that displays locations only, or a bubble map that varies bubble size based on number of households for an area, or a marker map that varies marker style based on the most profitable product for each store, or a line map that displays routes between stores."