The reality is that newsrooms have to justify their expenses. So how does data journalism help the bottom line? This video (free registration required) makes three arguments that data journalism can be a revenue generator. Some of the reasons are direct: data sales, increased traffic, direct sponsorships, etc. Other reasons are more abstract, such as developing greater trust, broadening audience, and leveraging social media for greater impact. Taken together, however, the arguments present a cogent case for why data journalism has commercial value that shouldn’t be ignored.