The most recent example that comes to mind is Duck Duck Go: http://www.gabrielweinberg.com/blog/2010/11/help-me-start-a-foss-tithing-movement.html http://www.g

The most recent example that comes to mind is Duck Duck Go: http://www.gabrielweinberg.com/blog/2010/11/help-me-start-a-foss-tithing-movement.html http://www.gabrielweinberg.com/blog/2010/11/help-me-start-a-... In this case the founder is obviously not critically in need of money, it still helps though.