The RSPCA was the charity that received the most UK press coverage in 2010, according to a report by the media analysis company Metrica.
The Metrica's Charity Radar for 2010 measured both national and local online and print coverage for 87 of the charities with the highest level of press coverage.
It found that in 2010 there were 434,946 articles that mentioned one or more of the 87 organisations.
The analysis found that BBC.co.uk was the national online publication most likely to mention charities. The Daily Telegraph was the national print publication that mentioned charities the most.
Catherine Wright, account director at Metrica, said the report demonstrated that charities had received an increasing amount of coverage over recent years, and this trend had continued in 2011.
She said that many different factors could drive coverage. "Getting an event well established can have a large impact," she said. "Fun stories always work really well too – Cancer Research UK is good at that."
The research found that an article that mentioned a charity's phone number or website often drove people to action, such as visiting the charity's site.