Joel Spolsky writes an excellent post on anecdote, pointing out how compelling vignettes are often strung together and used to support conclusions.  As a marketer I’m a big believer in the power of the story, but the oft-quoted “the plural of anecdote is not data” (long, indeterminate attribution here) definitely applies to brand and opinion monitoring. The most obvious problem is that anecdotes are not systematically selected; they’re selected as supporting points while other, conflicting anecdotes are inadvertently or deliberately ignored.

For those selling opinion monitoring into the large organizations, it’s a balancing act between providing the core, statistically valid analysis of the data, while “storytelling” with enough of the vivid anecdote for the client to hear the customer’s voice and engage. While opinion percentages are revelatory, an incident like Motrin Moms (summary from AdAge) tends to speed the adoption cycle dramatically.