Google has made a $2 million donation to the Wikimedia Foundation.
Best-known for the Wikipedia online encyclopaedia, the foundation also produces a range of other free online resources such as Wikimedia Commons, Wiktionary and Wikibooks.
Founder Jimmy Wales and board member Mitch Kapoor announced the donation in tweets late last night,
saying a formal announcement would come today.
Wikimedia isn't desperate for the money: it recently announced that it had raised $8 million for this financial year, exceeding its target by $500,000.
Over 230,000 people - twice as many as in the previous year - donated an average of $33.
This isn't the first time Wikimedia has received such a large donation, though; last August, it was given a $2 million grant from the Omidyar Network, eBay founder Pierre Omidyar's philanthropic organisation.