https://help.ubuntu.com/community/WindowsDualBoot
http://ubuntuforums.org/showthread.php?&t=282018&
https://help.ubuntu.com/7.04/installation-guide/i386/partition-sizing.html
http://tldp.org/LDP/lame/LAME/linux-admin-made-easy/install-partitioning.html (example disk size is 2 GB)
http://www.lockergnome.com/nexus/chrisshort/2005/01/05/moving-to-linux-partitioning
http://www.tipmonkies.com/2005/06/23/linux-filesystems-and-partitioning-a-primer/