So... the longer I think about this Wiki thing, the more it seems like a really good idea - a missing piece falling into place.
Here's my proposal, which I turn over to this, the larger community that suggested the Wiki in the first place:
The Wiki should consist mainly of short concept introductions plus links to longer posts, rather than original writing. Original writing goes in a post on Less Wrong, which may get voted up and down, or commented on; and this post should reference previous work by linking to the Wiki rather than other posts, to the extent that the concepts referred to can be given short summaries. The intent is to set up a resonance that bounces back and forth between the Wiki (short concept summaries that can be read standalone, and links to more info for in-depth exploration) and the posts (which make the actual arguments and do the actual analyses).
My role model here is TV Tropes, which manages to be, shall we say, really explorable, because of the resonance between the tropes, and the shows/events in which those tropes occur, and the other tropes that occur in those shows/events. And furthermore, you know that the trope explanation itself will be a short bite of joy, and that reading the further references is optional.
There would be exceptions to the "no original research" rule for projects that were multi-editor and not easily prosecuted through comments - for example, a project to make a list of all posts with one-sentence summaries in chronological order.
There are also obvious exceptions to the "link to the wiki" rule, such as for any case where it really was futile to reference anything except the complete argument; or where you wanted to talk about part of the argument, rather than the general concept argued; or when you wanted to talk about a conversational event that happened in a particular post.
I would suggest that the general format of a Wiki entry be a short summary / definition (that can maybe gloss or list some of the arguments if there's room, or even give the argument if it can be put really briefly), with the body of this being no more than a screenful as a general rule. Then links to posts, with descriptions (for each post) of why that post is relevant or what it has to say - probably one or two sentences, as a rule. Then references to outside posts on the same topic - although if the best reference is an outside discussion, that could come first.
Summaries of whole sequences could also go on the Wiki - since it seems more like static descriptive content, rather than debatable analysis and argument, which is how the wiki/blog dichotomy is starting to shape up in my mind.
Given unlimited development resources we'd want to integrate the two userbases, have a karma requirement to edit the Wiki, and such things, but we don't have much development resources (whines for Python volunteers again). But I would still like to see a list of recent edits and/or active pages in the Less Wrong blog sidebar, and a list of recent blog posts and recent comments in the Wiki sidebar. Of course the first priority is getting the Wiki set up on Less Wrong at all, rather than the current foreign host - I'm told this is in In Progress.
Once my old posts are imported from Overcoming Bias, it would be nice if someone went through them and changed the links to posts (that reference concepts per se, rather than conversational events or parts of arguments) to links to the Wiki, creating appropriate pages and concept summaries as necessary. That is, it would be nice if I didn't have to do this myself. Anyone interested in volunteering, leave a comment - it'd be nice if you had some comments to your name, by which to judge your writing skills, and perhaps some karma. This is a large job - though 10 posts a day would get it done in two months - so don't step up if you don't have the time. It does seem like the sort of thing that should definitely get done by someone who is not me.
I've already seen at least one person call Overcoming Bias "a bigger, and far more productive, time sink than Wikipedia or even TV Tropes". Done right, it really could be more addictive than TV Tropes, for the intellectually curious, because it would seem (and be!) more productive; when you browse TV Tropes it feels like you're wasting time.
I suppose I should feel slightly nervous about this, but it still seems like something that ought to be done if feasible, even though it sounds a bit scary - and I hope I'm not just saying that because I'm tempted to break out into mad scientist laughter.
My apologies for my late reply.
My todo list is now mostly clear of time-critical projects, and I can now officially volunteer to import all relevant Overcoming Bias posts to Less Wrong.
I also volunteer to:
*create Less Wrong wiki pages for all of the LW and OB posts, including all relevant information. However, writing the short summaries of the articles is a job that I would gladly delegate to someone else. What I should probably do is to just leave a placeholder for the article summaries, with tags to mark which articles still need summaries, and let all the other users fill in the summaries after the wikipages are posted to the wiki.
*update the links in the LW articles, changing them to link to the article's wiki page, rather than the article itself
*set up the new Less Wrong wiki, hosted at LessWrong.com, importing all of the content from the current wiki
*create the dependency graphs for all of the Less Wrong articles
*set up a system to automatically generate dependency graphs for new posts to Less Wrong, by reading tags placed on the articles' wiki pages.
*set up a system to automatically generate dependency graphs for the concepts themselves, rather than the articles, by reading tags placed on the articles' wiki pages.
*update the Less Wrong forum code so that you can create links to the wiki by using the [[WikiPage]]-style links.
*set up a system to automatically monitor which pages on the Less Wrong wiki have corresponding articles on Wikipedia or on the Accelerating Future wiki, or possibly some other relevant wikis, and create the appropriate links to these other wikis.
For more ideas for future projects, see http://lesswrong.wikia.com/wiki/How_We_Can_Use_This_Wiki
I would also like to get the contact info for whoever is currently in charge of the Less Wrong website.
Some other things I have already done recently:
*setting up the Accelerating Future wiki: http://acceleratingfuture.com/wiki
*setting up the Accelerating Future forums: http://acceleratingfuture.com/forum
*upgrading the SL4 wiki to MediaWiki format, importing all relevant content from the SL4 wiki to the Accelerating future wiki
*fixing all of the broken links in the Categorized SL4 mailing list archive: http://acceleratingfuture.com/wiki/Categorized_SL4_Archive
*creating a first draft of the Scenarios Project: http://acceleratingfuture.com/wiki/The_Scenarios_Project
*creating a java applet for browsing through the dependency graphs of the Overcoming Bias posts: http://acceleratingfuture.com/lesswrong/dependencygraph/ WARNING: This is a resource-intensive java applet, and it may crash your web browser.
I thought making separate wiki pages for each article is exactly what EY is suggesting we avoid.