From a World Bank Policy Research Working Paper titled "The Impact of Economics Blogs":
"There is a proliferation of economics blogs, with increasing numbers of economists attracting large numbers of readers, yet little is known about the impact of this new medium. Using a variety of experimental and non-experimental techniques, we have provided the first quantitative evidence that they are having impacts.
First, links from blogs cause a striking increase in the number of abstract views and downloads of economics papers, while a majority of economics blog readers say they have read a new paper in the past month as a result of a blog. Second, blogging raises the profile of the blogger (and his or her institution) and boosts their reputation above economists with similar publication records. Finally, a blog can transform attitudes about some of the topics it covers."