This measure tracks each blog over the last twelve weeks in a rolling average, producing a more stable measure of influence that reflects a blogs longer-term impact on the blogospheric conversation rather than the "Official" single week results which can be influenced by a few really good or really controversial posts.
| Rank | Blog | Prev |
|---|---|---|
| 1 | South Dakota War College | 1 |
| 2 | South DaCola | 2 |
| 3 | The Decorum Forum | 6 |
| 4 | Dakota Voice | 3 |
| 5 | Constant Conservative | 4 |
| 6 | Red, Blue & Purple | 5 |
| 7 | Voices Carry | 8 |
| 8 | Madville Times | 7 |
| 9 | South Dakota Humanist | 9 |
| 10 | The MinusCar Project | 10 |
| 11 | South Dakota Politics | 12 |
| 12 | Sibby Online | 11 |
| 13 | School-of-Thought | 15 |
| 14 | Republic Insider | 13 |
| 15 | RadioActive Chief | 19 |
| 16 | Newsmonger | 14 |
| 17 | Behind Govt Lines | 18 |
| 18 | Black Marks on Wood Pulp / by Corey Vilhauer | 16 |
| 19 | A Progressive on the Prairie | - |
| 20 | Northern Valley Beacon | - |
BlogNetNews' Blogosphere Influence Rating combines a variety of data sets to determine which blogs are most powerfully influencing the direction of the South Dakota political blogosphere. The exact method BNN uses to calculate influence scores must remain proprietary in order to prevent attempts to game the system. BNN's methodology takes into account the fact that all Internet data is profoundly limited in its reliability by using multiple data sets that, when combined, reveal a fair picture of activity in the blogosphere.
