Update on Fonts:
According to our research on www.CodeStyle.org we use the following monospace fonts on our page due to their circulation.
MONOSPACED: (installed)

Ⓦ Windows: Lucida Console 96.03%
Ⓜ Mac: Andale Mono 85.23%
Ⓛ Linux: Bitstream Vera Sans Mono 80.81%

SANS: (installed)

Ⓦ Windows: Lucida Sans Unicode 93.23%, Lucida Sans 77.36%
Ⓜ Mac: Lucida Grande 88.47%
Ⓛ Linux: Bitstream Vera [...]