Home page - World
www.ubuntu.com
Home page - Canada
www.ubuntu.ca
Forums - how-to's and support threads
http://www.ubuntuforums.org/
Wiki - documentation and information
https://wiki.ubuntu.com/
Unofficial Ubuntu Starter Guide - how to setup and configure almost
anything on Ubuntu
http://ubuntuguide.org/wiki/Dapper
UbuntuBlog - lots of great tips and tricks
http://ubuntu.wordpress.com/
GnomeArt - artwork for the Gnome desktop
http://art.gnome.org/
Linux Command Directory - helpful reference for those using the command
line
http://www.linuxdevcenter.com/linux/cmd/
Windows-Linux table of equivalents - find out the Ubuntu equivalent for
a Windows application
http://www.linuxrsp.ru/win-lin-soft/table-eng.html
Linux Shell Scripting - a reference for those digging a little deeper
into the power of Linux
http://www.cyberciti.biz/nixcraft/linux/docs/uniqlinuxfeatures/lsst/
Have fun!