The Wikimedia Foundation collected similar data from their 2008-2009 campaign, where they also varied the appeal: https://secure.wikimedia.org/wikipedia/meta/w

The Wikimedia Foundation collected similar data from their 2008-2009 campaign, where they also varied the appeal: https://secure.wikimedia.org/wikipedia/meta/wiki/Fundraising_2008/Report https://secure.wikimedia.org/wikipedia/meta/wiki/Fundraising... If you look at the 'Total Donation by Template' graph, you'll see that the "jimmy letter" appeals (templates) generated the most donations then as well.