HWBOT Overclocking Competition Engine
hwbot.org, based out of Belgium, has an interesting idea: not only do they gather technical specs on a large number of computer hardware components and let you benchmark your system against others', but they make it into a 24/7 competition. Even more, hwbot has recently released into beta an "overclocking competition engine." Dubbed HWBot Competition Engine (HCE), the service allows you to host hardware competitions with stage ranks, hardware rules, customized scoring, special awards, and even prizes.
Full details can be found in HCWBOT's public announcement here.