The following are some resources that may be useful for the GIMP user. Unfortunately, the newness of this version means that many resources may be outdated.
provides access to the internal help system.
The GIMP User Group offers an informative and interesting web site at http://gug.sunsite.dk.
http://www.gimp.org is the official home page of The GIMP.
Grokking the GIMP by Carey Bunks is an excellent book based on an older GIMP version. Although some aspects of the program have changed, it can provide excellent guidance for image manipulation.
http://gimp-print.sourceforge.net is the web page for the GIMP print plug-in. The user manual available from the site provides detailed information about configuring and using the program.