- 501(c)(3) status can multiply delivered value 2–4× through tax-deductible donations and donor-side capital, but US rules cap short-term investing and discourage surplus reinvestment, forcing most non-profits to rely on continuous donor support.  
- Privately held startup stock that is illiquid can be donated directly to a 501(c)(3) or Donor-Advised Fund, simultaneously funding projects and generating a personal tax write-off.  
- Google Ad Grants provide recurring US $10 k/month in free AdWords for qualified 501(c)(3)s; one participant has already secured this for HacDC and offers to replicate the process for other groups, targeting ads at recruiting skilled researchers and grant sponsors rather than broad outreach.  
- Scalp EEG electrodes mainly capture skin impedance, oils, and muscle artifacts; skull-free access (e.g., invasive or sub-scalp arrays) would yield far cleaner cortical signals for BCI applications.  
- The IRS rigorously scrutinizes charitable-purpose language: six prior attempts to obtain 501(c)(3) status for cryptocurrency research failed because “produce high-quality products at reduced cost” is not deemed charitable, whereas “promote computer-science education in schools” (modeled on the Raspberry Pi Foundation) is acceptable.  
- El Platt’s essay “Sustainable Hackerspaces FTW” (https://elplatt.com/sustainable-hackerspaces-ftw) is recommended as a practical guide for running financially resilient non-profits without compromising charitable missions.  
- Josiah Zayner’s segment on gene editing appeared on John Oliver’s “Last Week Tonight,” highlighting DIY-bio and transhumanist themes in mainstream media.