Right now, I've personally paid for a 6-month membership to Ancestry which will end in September 2013. I only subscribe off-and-on (sometimes not for an entire year at a time). Primarily, donations would help with membership fees to this site, the bread and butter for my research. For just access to US records, this is $155 for an annual membership, or $23 per month.
In the rare event that there happens to be donated money beyond this, I have a few ideas for how those funds could be used:
*) Subscribing to a newspaper archive service would be a plus. Some newspapers are available on Ancestry, but there is next to nothing in the Cleveland area. This would cost roughly $20 per month or $70 per year.
*) Upgrading the Ancestry account to include international records. I don't really see enough value in this yet, but after working with more residents, I may have enough of a research backlog to begin looking in international records. Right now, the need is simply not there.
*) There are some other ideas like obtaining vital records, creating keepsakes once most of the research is complete, etc. I list these last as these are things I feel the nursing home may be willing to pay for.
Please keep in mind that Silver Branches is not an official charitable organization, (that is, donations here are not tax-deductible because I have not filed for a 501(c3) ) but I assure you that the funds will go to advancing this project and providing meaningful information to the nursing home residents.
Thanks for your support!