Most folks have probably already figured out for themselves that having to use a painfully small display with a low resolution impedes their productivity. However, according to the Wall Street Journal's Business Technology Blog, a study conducted by researchers at the University of Utah suggests that even switching from a normal-sized display to a larger one-or two larger ones-has a significant effect, as well. According to the researchers' findings, folks who use a single 24" display are 52% quicker at tasks like editing documents and tossing numbers between spreadsheets than those who use a single 18" display. Having two monitors instead of one helps, too, although not quite as much: the speed increase from switching to dual 20" displays from a single 18" monitor is only 44%. Interestingly, the researchers say productivity actually goes down when users switch to a 26" monitor, suggesting 24" could well be the sweet spot.

Yeah! The more, the merrier :-) Personally, I use a single 22" widescreen monitor.