As a commenter said on the longtail site: "Is it the 'free' effect or the 'Oprah' effect?". It seems clear to me that Oprah certainly gave a tribune for the aut

As a commenter said on the longtail site: "Is it the 'free' effect or the 'Oprah' effect?". It seems clear to me that Oprah certainly gave a tribune for the author. It would be interesting to see what proportion of the downloaders watched the Oprah show on that day. Regardless, according to the graph, that was quite successful!