If you ever need some custom machined parts, even in small quantities, head over to eMachineShop - Online Machine Shop - with FREE CAD Software.

From: SANS - Internet Storm Center - Cooperative Cyber Threat Monitor And Alert System - Current Infosec News and Analysis, a report that finds that an unpatched Windows XP box has on average 20 minutes before being infected by a port-scanning worm. They have an in-depth pdf showing how to connect a brand new Windows XP box to a Network which details all the steps you need to go through to secure the out-of-the-box network settings before you connect to Windows Update. No mention that I could see about how being behind a dsl/cable modem sharing router affected survival time.

It's not everyday I recognize something from the Human Factors courses I slept through: mezzoblue § Fitts' Law. Now, if only we can make use of Therbligs to analyze motions during user interaction...

A larger clickable area means less precise mouse movement is required to focus on the link. Without impacting the design in any way (the halo is non-visible after all) the usability of the header improves.