2009/8/28 FT2 ft2.wiki@gmail.com:
I'd be all up for writing a wikibook introduction to Wikipedia. Anyone else interested? :)
FT2
Most people are not going to want to read a book before editing wikipedia. Your problems are:
1)getting people to click the edit link in the first place (polish style tab highlighting may help here)
2)getting them not to give up once they've clicked the edit button (usability project)
3)encouraging them to edit again in future (mostly related to making sure they have a good first experience).