Your donations are used for communications (web chat, email service), databases, cloud platform and virtual servers to help keep VaxCalc up and running. Donations are not tax deductible. The Center for Informed Consent Technology is not a non-profit and has no plans to become one. We have begun to process to become a certified B corporation: B Corps are for-profit companies certified by the nonprofit B Lab to meet rigorous standards of social and environmental performance, accountability, and transparency. The process could take a few years to do right - but its worth it. Read Kickstarter's 2016 Benefit statement to see why (especially the sections on privacy).
Bitcoin is open-source; its design is public, nobody owns or controls Bitcoin and everyone can take part. We view bitcoin (and other cryptocurrencies) as an important part of modern movement for privacy, security and freedom. Learn more about bitcoin: https://bitcoin.org/
Note from Chris (01/04/2018): bitcoin is no longer good for small transactions - the fees are crazy high.