Blogs:

How to work around VirtualBox's annoying logfile bug:
By jaysonrowe
Sadly, in the latest release of Sun's VirtualBox a problem slipped by which caused huge log files to build up in your home directory. Here's what I did to work around them for now. (Tested in Foresight Linux): ...
Jayson Rowe's Ramblings - http://jaysonrowe.wordpress.com

Experiencing with vmware server and Sun xVM VirtualBox

By mysurface
Recently I have tried Sun xVM VirtualBox 1.6.4 , I have compare vbox with Vmware server 1.0.4. After couple days of testing, its time for me to share some personal findings towards them. I may not able to provide graphs, and accurate ...
Linux by Examples - http://linux.byexamples.com

The VirtualBox Guest Additions
By Ubuntuland(Ubuntuland)
The previous chapter covered getting started with VirtualBox and installing operating systems. For any serious and interactive use, the VirtualBox Guest Additions will make your life much easier by providing closer integration between ...
Ubuntuland, The Dream Valley - http://ubuntulandforever.blogspot.com/

Ubuntu, Sun VirtualBox and bridged networking
By mainfram
One annoying thing about VirtualBox is that id does not give you an easy way to setup a network bridge like vmware does. So after digging around the web I found the following script does the job nicely. #!/bin/shUSERNAME=user # login ...
Mainfram Reality - http://www.mainfram.com