"While in print seriffed fonts are considered more readable, sans-serif is considered more legible on computer screens. For this reason the majority of web pages employ sans-serif type. Hinting information, anti-aliased and sub-pixel rendering technologies have partially mitigated the legibility problem of serif fonts, but the basic constraint of coarse screen resolution—typically 100 pixels per inch or less—continues to limit their readability on screen."
wikipedia helps me out again...
So i guess serif fonts are more legible for print.