At last someone has produced a free-to-download User Guide to Using the Linux Desktop (there may be others but this is the first general purpose one I’ve heard about). You might also check out “the O’Reilly site”:http://linux.oreilly.com/ for a few free chapters from some of their many Linux books or take a look at “Learning Debian/GNU Linux “:http://www.oreilly.com/catalog/debian/chapter/book/index.html which is completely free – one of O’Reilly’s “Open Books”:http://www.oreilly.com/openbook/.
Thanks to “Slashdot”:http://linux.slashdot.org/linux/04/08/22/1955204.shtml for the link