Interested in donating to existential risk reduction efforts? Would you like to exchange career information with like-minded others? Then you should consider the Existential Risk Reduction Career Network! ("X Risk Network" for those short on time.) From the front page of the website:

"This network is for anyone interested in donating substantial amounts (relative to income) to non-profit organizations focused on the reduction of existential risk, such as SIAI, FHI, and the Lifeboat Foundation. [...] We are a community of people assisting each other to increase our resources available for contribution. Members discuss the strengths and weaknesses of different careers, network, share advice on job applications and career advancement, assist others with finding interviews, and occasionally look for qualified individuals to hire from within the network."

For more details, including on the process of requesting invitations, head on over to the front page at http://www.xrisknetwork.org/

Keep in mind that the network is for students as well, not just those currently on the job market. The network also has discussion of long term job strategy, school admissions, and intern possibilities.