Why does the Right side of the blogoshere have less traffic, a smaller audience, than the Left side of the blogosphere? Chris Bowers, writing at MyDD and Open Left, has addressed the question previously. While I don't agree with all of his analysis, he makes very compelling points. A substantial part of this disparity is attributable to simple cyclical dynamics. While the Right has been in power, defending the status quo, the Left has been storming the castle.
Storming the castle is much more fun.
There are other contributing factors as well. Perhaps Progressive demographics and the "creative class" divide play a part; the Left has certainly invested a lot more in building smart, strategic online infrastructure.
But I wonder if there's not another factor - an artifact of the 1990s - that is being overlooked. It's easy to forget that the Right was generally considered to be ahead on the internet until about 2003. Opposition to the Clinton administration resulted in a number of popular websites, such as Newsmax, WorldNetDaily, Free Republic and Towhall. And while it is ideologically opaque now, the Drudge Report was generally thought to be right-of-center at the time.
For quite some time, those sites dominated the political landscape. But, with the exception of Townhall, they never really evolved. While left of center magazines, online media outlets, advocacy organizations and and think tanks embraced the new media, the legacy Rightospere remained resolutely devoted to its Web 1.0 model.
It wasn't until 2003, when the Progressive blogs really found their voice over unifying grievances like the Iraq war, specific political narratives, and clear movement leaders like Howard Dean. But when the 2004 election ended, the online Left continued to grow. And why not? After all, like the Right in the 1990s, they had "an axe to grind, and plenty of fury to turn the wheel."
Today, the Leftosphere is the dominant public channel for political communication for the onine Left...but is that also true of the Rightosphere? I'm not sure. Take a look at the following Alexa chart of traffic to various legacy Rightosphere sites compared against Daily Kos.

While Alexa is far from a perfect measurement, this certainly suggests the legacy Rightosphere is, at least, competitive. But the top right-of-center blogs do not do so well.

Based on a few conversations I've had with people who have looked into online consumption patterns on the Right, I think it's very possible that the online Right has two distinct cultures: one that evolved into the new media culture, and one that never made the transition out of the 1990's internet culture.
- The Web 2.0 Right has evolved into the new media age. They read blogs routinely, and may also use social media, social networking and bookmarking tools. They are comfortable with, even participants in, the social, collaborative media.
- The Web 1.0 Right, however, is still operating in a one-way world - an online news media that does not really encourage dynamic online activism, collaboration or engagement with the news. This audience is getting some news...and that's it. The engagement process ends there.
That is only a hypothesis, at this point and I would be interested in seeing more data on internet consumption patterns on the Right. If that's the case, though, we ought to start thinking about how we bring the Web 1.0 Right into a more dynamic, collaborative Web 2.0 Rightosphere.