[ihnorton]

Doctors Without Borders/Médecins Sans Frontières (MSF) is on the ground and is one of the most effective ways to directly support efforts to aid Ebola victims and stop the spread (disclosure: I just donated):

https://donate.doctorswithoutborders.org

The health systems in these countries were already overwhelmed and under-resourced long before Ebola broke out, and the international governmental response has so far been alarmingly tepid.

Recent AmA with an MSF doctor:

http://www.reddit.com/r/IAmA/comments/2g79ip/i_work_for_doct...

Note that MSF has an excellent efficiency rating (~87% of revenue goes to program expenses, 11% to fundraising):

http://www.charitynavigator.org/index.cfm?bay=search.summary...