Skynet (no; not the main nemesis in the Terminator movie series that become ‘self-aware’) is actively seeking the assistance of idle home PCs in order to process / sort through astronomical data…
For more information… actually, it is a good thing that the previous reference is / was still only the stuff of science fiction… otherwise, it’d already know how to contact any given citizen, right?
From the BBC: http://goo.gl/NjrDR