Ashlin stresses that if scientists don't take a more active role in the blogosphere, the public will have a much harder time finding accurate scientific information that can inform policy decisions.
"There is no [quality control] mechanism in place, and I'm not sure how you could implement one, because spontaneity is the whole appeal of blogs," she said.
Ray Pierrehumbert, a geophysicist at the University of Chicago, agrees.
"The Internet is a little like the library of Babel, in the story by Jorge Luis Borges," he said.
"That library contains not only everything that's true but everything that's falseso there's a lot of absolute junk information out on the Internet, and it's really critical for there to be some way for people to find out which sites are reliable."
Pierrehumbert believes that if more scientists produce better blogs, the online community will exercise its own quality control.
"The Net seems to have a kind of self-organizing peer review," he said. "The word gets around if blogs are full of junk, and then people stop looking at them."
"The impetus was just that there are a lot of junk science sites out there, but we didn't see a sort of centralized resource where people could go to get really credible scientific information on climate change written by scientists," he said.
"Other sites have good information, but may be run by organizations that have advocacy roles.
"Sometimes, unavoidably, we may slip into an advocacy role, but we consider our mandate to interpret the science. The focus is on accuracy ."
Roger Pielke, Jr., is director of the Center for Science and Technology Policy Research at the University of Colorado at Boulder. He heads Prometheus: The Science Policy Weblog.
Prometheus also relies on high-quality scientific contributions and delivers thought-provoking content, he says.
"We aspire to high standards, though in a blog you don't always reach them," Pielke said. "We remind people who post that [their writings] will be read by everyone, just like a peer-review paper would be."
Because Prometheus is a policy blog, he says, he tries to ensure accurate science is buttressed by a balanced viewpoint.
"Our site is focused on the interface of science and policy, so we try to have a diversity of views presentedthough we don't always succeed," he said.
"We do a minimal amount of moderating the comments," he continued. "I'd say that we accept 99 percent of those offered. I think we have the highest-quality commentators and I really value them."
Boosting Scientific Thought
According to Pielke, the potential for anonymity in the blog environment has also provided some unlooked-for advantages.
"Some anonymous posters are quite aggressive in challenging us, and you get a sense of how your argument is being received in a way that you'd never get in a professional peer review," he said.
"People seem to be liberated to tell you what they really thinkwhat someone might say in a hallway after you give a talk but never say [directly] to you. That can be very valuable."
Like nearly all scientific blogs, Pierrehumbert's RealClimate is meant for the public and the medianot for the research community.
But professionally oriented blogs could become useful tools for sharing and refining concepts among scientists, experts say.
"There probably is a need for a climate-science blog written for climate scientists," Pierrehumbert said.
In the meantime Oxford's Ashlin is optimistic about the future of scientific blogs.
"It would be great to see more reporting from conferences and fieldwork. This is a forum to discuss, disagree, debate, and finds ways of advancing science," she said.
"More informed opinion can only be a good thing for the blogging community."
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