I am a web designer and programmer looking to move from Windows to
Linux OS. I am looking for an online Linux primer/ tutorial (or
multiple) that covers the basics of the OS.

Ideally this guide would include at least basic commands, discussion
of the Linux filesystem (standard directories), and information about
users and groups. I already have extensive experience with computers
and programming (perl, php, python), so the content should not be too
slow.

One last thing, I'm hoping to print out this material and read it on
paper, so sites with a 'print version' or few graphics would be best.

Thanks,
Patrick

Hello... Welcome to linux dude!!! Here is a must know content:

Getting Started:
http://www.linux-tutorial.info/modules.php?name=MoreInfo (Tutorials)
http://www.comptechdoc.org/os/linux/commands/
http://www.comptechdoc.org/os/linux/howlinuxworks/
http://www.linux.org/lessons/beginner/toc.html
http://www.tldp.org/LDP/intro-linux/html/
http://www.linuxplanet.com/linuxplanet/tutorials/202/1/
http://linux.oreillynet.com/topics/linux/

Commands:
http://www.mediacollege.com/linux/command-tutorial/index.html
http://www.mediacollege.com/linux/command/linux-command.html

Programing:
http://www.comptechdoc.org/os/linux/programming/
http://www.linux.com/howtos/HOWTO-INDEX/programming.shtml (Very nice resources)
http://linuxassembly.org/resources.html (A little bit of assembly)
http://linux.oreillynet.com/topics/linux/programming

Users Groups
http://www.linux.org/groups/
http://lugww.counter.li.org/groups.cms
http://dir.yahoo.com/Computers_and_Internet/Software/Operating_Systems/UNIX/Linux/User_Groups/

Bonus:
http://www.getafreelancer.com/ ;)

Hope this helps... Let me know if i missed something.

Good Luck.

For an AWESOME growing online community where you can ask questions if
anything goes wrong with your new linux box, or if you just need to
know something go to:

http://www.sglinux.com