12. The one or more computer-readable memory devices or storage devices according to claim 11 , wherein: the first values correspond to a first time period, the second values correspond to a second time period that is subsequent to the first time period, the first group of first text communications occurred during the first time period, the second group of second text communications occurred during the second time period that is subsequent to the first time period, the first summary represents the first group of first text communications that occurred during the first time period, and the second summary represents the second group of second text communications that occurred during the second time period.
12. The one or more computer-readable memory devices or storage devices according to claim 11 , wherein: the first values correspond to a first time period, the second values correspond to a second time period that is subsequent to the first time period, the first group of first text communications occurred during the first time period, the second group of second text communications occurred during the second time period that is subsequent to the first time period, the first summary represents the first group of first text communications that occurred during the first time period, and the second summary represents the second group of second text communications that occurred during the second time period. 13. The one or more computer-readable memory devices or storage devices according to claim 12 , the acts further comprising: presenting the first summary and the second summary in chronological order.