According to a recently published research paper, "Does Chatter Matter," NYU Stern Professor Vasan Dhar along with his former student Elaine Chang, discovered there is a direct correlation between the number of blog posts on the Web and subsequent sales of albums being discussed. In a sampling of 108 album releases from January and February of last year, Dhar and Chang found sales were three times the average if "legitimate blog posts reached a threshold of 40."