This is a small but working tip for XHTML/HTML/CSS font-family values that should make your sites look great under the linux os. If you are offering fontnames as a free linux replacement for arial or helvetica or any other fontface: Put them in front of the list, not after the font you like to offer an alternative to.
font-family: arial, helvetica, sans-serif; would become font-familiy: freesans, arial, helvetica, sans-serif; then.
This circumvents problems some workarounds in linux based browers produce with their very own way of font substitution. And you might encourage yourself to find free fonts sothat anyone can benefit from your design without having to buy this or that OS.
Achtung! Designers: This might be a good tip for apple fonts as well.
