Providing information to the public is one of the main "charitable objectives" of many charities, particularly medical-related charities. So it was interesting to see the recent announcement by Cancer Research UK of an initiative to tidy up some of the key pages on cancer on Wikipedia.
The challenge is that for typical cancer related searches, Wikipedia comes second, whilst Cancer Research comes around eighth. Wikipedia gets many more visits as a result of the higher search result ranking (3.5m per month over its 1,500 cancer-related pages), but Wikipedia articles are not necessarily accurate or well written.