Giving new meaning to the term "server farm," a team of Hewlett-Packard researchers has come up with an idea for an environmentally friendly data center — powered by manure.

In a paper set for release this week, HP scientists have proposed using a "biogas" recovery system that would convert livestock waste into methane, to be used as fuel to generate electricity for data centers — those cutting-edge computer facilities that serve as the nerve centers for an increasingly Internet-dependent world.