I am team leader for Project Blue Book. We have been running BOINC projects for quite a while. We got started with distributed computing back in the days of "SETI@Home", and made the jump to the BOINC platform. We do Science! All are welcome to join us.
I run PrimeGrid, primarily because of the support for GPU... I run one machine with nVidia CUDA (GeForce GTX 560 Ti) .. It kicks out the work units!
PrimeGrid: hmmm, did we need to discover more prime numbers? More like, "because we can"! So we shall!