There are other non-profits who not only list contributors on their pages,
but also their tax filing reports which shows exactly how much money came in
and descriptions of how much of that is spent. The FSF posts their reports
online and follows the guidelines of a 501(c)3 organization.
Looking at the Apache Foundation, they are a good reference of a software
non-profit that is heavily organized: http://www.apache.org/foundation/ with
their records posted online: http://www.apache.org/foundation/records/
With Trisquel being a European non-profit, are the guidelines similar as they
were in the United States? I ask becauce of my familiarity with researching
US based ones.