Netwinder.org contains a lot of information about the NetWinder platform, somewhat scattered about unfortunately. The best way to find information is by using the search page. Note that this only searches the NAMES of files. To search within the files, it is easiest to use Google and to specify site:netwinder.org in your search there.
If you are looking for manuals for OfficeServer, please visit the www.netwinder.net site instead.
FAQ and HOWTOs
There is a FAQ that answers the Frequently Asked Questions and quite a few not-so-frequently asked ones. Please be sure to check the FAQ first!
There are also a number of HOWTO documents specifically for NetWinder. They cover such topics as how the upgrading the firmware, kernel, or hard disk image.
Current status information
Information about the various kernel, firmware and disk images can be found on my homepage. One day I will merge them into the main website.
Developers can find more documentation under the "Development" heading on the navigation menu.
A large collection of datasheets for the chips used in the NetWinder can be found at pub/netwinder/docs, on the FTP site. See also the annotated listing (file was removed, try the older version instead).