firefox + adblock plus = no advertisements on the internet 😀
I'm guessing the background is white because it makes it look clean, unlike many other sites.
However, maybe in the future, some adiitional themes for the site could be created and then allow the user to choose which they prefer. I did this on one of my websites before my web host got hacked. The different themes were generally a success as people switched them around. different colours = different opinions.