At least that's my take on it.
The BYU study examined how much journalists use the blogosphere and found out that they spend a lot more time reading the liberal outposts than they do conservative bloggers:
[Prof Richard] Davis also queried more than 200 journalists to learn how they use blog content in their coverage of political news. Most journalists were aware of influential blogs on both sides of the political spectrum, such as Daily Kos and Talking Points on the left and Michelle Malkin and Instapundit on the right. Despite equal awareness, journalists spend more time reading posts in the liberal blogosphere.
I haven't bothered to check Newsbusters, but I'm guessing they're touting this as the missing piece to their liberal media bias conspiracy puzzle: Journalists love liberal bloggers!
My take is a little different. My take is that journalists are mostly college-educated professionals in search of new and interesting information and when they visit sites like Talking Points Memo and Michelle Malkin's blog it becomes blindingly obvious that one site is serious in its approach to information gathering and sharing, and the other is, um, not. (I'm feeling charitable today.)
So it's not surprising that journalists would spend more time at the sites that are insightful and are intellectually honest, and spend less time at the sites that are, categorically, not.