Today saw the end of Windows 98, Window 98SE, and Windows ME support from Microsoft (link). There will be no more security updates for these products, and paid support will no longer be available for them. I personally have fond memories of Windows 98 and 98SE, as these were the last times that a major Microsoft OS revision has left the majority of network-related user interactions alone. From the perspective of an ISP technical support worker, the transitions from Windows 95 to 98 to 98SE were nearly pain-free, requiring very little retraining; if you could walk somebody through their dial-up connectoid in one, you could handle any of the others with minimal variation. A little part of me will miss these old warships.
As for the Millenium Edition? Well, the less said, the better.