If you're at all interested in e-biz, you'd better get serious about tracking webographics. A user's webographic profile includes platform (Mac, Unix, or Windows), browser make (IE, Netscape) and model (3.0, 4.0), and connection speed (T1, 28.8, 14.4). Each of these factors can have a dramatic effect on a user's experience, and every developer must decide whether to build a site that's accessible to everyone (meaning fancy cutting-edge doodads are out) or create something really cool that won't work unless users upgrade. We, of course, recommend the former.