If you ever write an essay on making online community scale, I'll certainly be an enthusiastic reader!  Quite a bit has been written on the subject, but I've found surprisingly little that seems really good, despite the importance of the topic.<p>Two useful links on the subject are <a href="http://nielsenhayden.com/makinglight/archives/006036.html" rel="nofollow">http://nielsenhayden.com/makinglight/archives/006036.html</a> and <a href="http://www.meatballwiki.org/wiki/" rel="nofollow">http://www.meatballwiki.org/wiki/</a>