Here are some Netwinder links I found interesting. These are basically the people with netwinder.org accounts that had user pages with content I found useful.
I had trouble finding Ralph's fan in stock at any distributors, but DigiKey carries Sunon part number KDE1203PFB1-8 which is similar. I couldn't link directly to the page for the part but their Part Search will bring it up. Just click the Search button below. You can also look at the catalog page for the fan.