Boosteroid could be compared with this one, but it is hard to define if they can be similiar at all.
Aren't there already projects that pool computing resources that we used to map DNA molecules or some such shit.
Golem is a good coin, but you should know that there are betters are the moment. This thread has been created a few months ago but it has just been pumped anyways.
When it got created.. The price was less than $0,20 each, that is pretty interesting.