Most healthy intellectual blogs/forums participate in conversations among larger communities of blogs and forums. Rather than just "preaching to a choir" of readers, such blogs often quote and respond to posts on other blogs. Such responses sometimes support, and sometimes criticize, but either way can contribute to a healthy conversation.
If folks at Less Wrong saw themselves as a part of a larger community of rationalists, they would realize that most rationalist authors and readers are not at Less Wrong. To participate in a healthy conversation among the wider community of rationalists, they would often respond to posts at other sites, and expect other sites to respond often to them. In contrast, an insular group defined by something other than its rationality would be internally focused, rarely participating in such larger conversations.
Today at Overcoming Bias I respond to a post by Eliezer here at Less Wrong. Though I post occasionally here at Less Wrong, I will continue to post primarily at Overcoming Bias. I consider myself part of a larger rationalist community, and will continue to riff off relevant posts here and elsewhere. I hope you will continue to see me as a part of your relevant world.
I worry a little that Less Wrong karma score incentives may encourage an inward focus, since karma is so far only scored for internal site activity.
Ha, I saw this comment and subsequently this post accidentally while searching through your submissions to find your post on metaphilosophical mysteries to link to in a comment on Robin's post about the meaning of the meaning of life.
But anyway, is there a list anywhere of other rationalist blogs/forums? Maybe if such a list were created then people would add such blogs into their RSS feeds, or participate in the forums (though the latter is less likely). Michael Anissimov's blog, Overcoming Bias, GNXP, and Roissy's blog are the other rationalist blogs in my feed at the moment. Others, like your own, Steven0461's, and Philosophy Etc., don't seem to update very often. The Everything List seems pretty much dead or irrelevant. Two blogs that come to mind that I should subscribe to are Scott Aaronson's and Shane Legg's. Marginal Revolution isn't my thing but I'm sure others here would enjoy it. Same with Practical Ethics. Do you know of others?
I notice we tend not to interact with the New Atheists or places like RationalWiki, mostly because there's not much to learn from them. I came here from RW and when I visit there from time to time there's really nothing interesting any more. The emphasis on reversed stupidity gets old. (But it's cool that they're way chiller and less pretentious.) Still, perhaps we could at least spend some effort evangelizing in such forums? If so, I heavily recommend against bringing up cryonics, the Singularity, et cetera, but I think that would be the average Less Wronger's natural reaction because it is a case study in when naive traditional rationality and scientific majoritarianism fail to find the most relevant questions. The whole thing is difficult to navigate.