Free Rebootless Kernel Updates for current Ubuntu

Unless you have Ubuntu 8.04 LTS, you can get your kernel updated with security fixes without the need for rebooting at all. Remember how Windows needs or used to need a reboot for almost every software installation? Now you'll never have to reboot your Linux! Get Ksplice for Ubuntu here.

Windows Emulator

Check out these great comics by Shane Collinge about a woman writing a windows emulator.