From Michael Anissimov on the Singularity Institute blog:
Thanks to generous contributions by our donors, we are only $11,840 away from fulfilling our $100,000 goal for the 2010 Singularity Research Challenge. For every dollar you contribute to SIAI, another dollar is contributed by our matching donors, who have pledged to match all contributions made before February 28th up to $100,000. That means that this Sunday is your final chance to donate for maximum impact.
Funds from the challenge campaign will be used to support all SIAI activities: our core staff, the Singularity Summit, the Visiting Fellows program, and more. Donors can earmark their funds for specific grant proposals, many of which are targeted towards academic paper-writing, or just contribute to our general fund
After shutting up and multiplying, I agree those arguments are valid. This presentation by Anna Salamon is also instructive.
I'm uncertain as to whether funding for SIAI or anti-aging research provides the best marginal utility. Both would have a gigantic positive impact if successful; SIAI's would be larger but in my estimation anti-aging has a better chance of success. The matching donations tip the balance to SIAI today, so $900 more is on the way.
I do believe the political argument with number of donors may apply to SENS and MF, so I'm making smaller donations there. I'm disappointed that curing aging hasn't been mentioned during the frequent discussions of rising health care costs; with more publicity and more donors willing to make the obvious point that aging and death suck, it might. In my estimation it will be easier for them to go mainstream than SIAI, so I believe it's most effective to separately target my monetary and political support.