Wkipedia.org is running a fundraiser:

[To protect our independence, we’ll never run ads. We take no government funds. We survive on donations averaging about $15. Now is the time we ask. If everyone reading this right now gave $3, our fundraiser would be done within an hour.We’re a small non-profit with costs of a top 5 website: servers, staff and programs. If Wikipedia is useful to you, take one minute to keep it online and ad-free another year. Please help us forget fundraising and get back to Wikipedia. Thank you.]