LiveJournal seems to be a very powerful tool, with very weak "How-to" documentation. (The technical documentation is great, but it leaves with little skills, just knowledge.) I think that a WikiWikiWeb would be a great way to store this in a persistent way (rather than the transient way of the lj_everywhere community).
If anyone is interested, I will happily set up a Wiki for the LJ-code-using community. I think this would be a great asset.