For years, MSN adCenter tracking has been a bane to my existence. A large portion of that has been due to the gross inaccuracy of the numbers (somewhat improved with their spring update).  And a larger portion has been due to the fact that, even when we ignore the inaccuracy, we still have to deal with the fact that a very key metric is missing. Really MSN, you want us to run an eComm campaign without being able to report revenue? (more…)