The site looks good. The screencast ( http://tu-dus.com/files/screen_pt.swf http://tu-dus.com/files/screen_pt.swf ) explains things well even though I did not u

The site looks good. The screencast ( http://tu-dus.com/files/screen_pt.swf http://tu-dus.com/files/screen_pt.swf ) explains things well even though I did not understand the language. I have no first hand experience in receiving donations (tried, but failed). I have heard from other people that the 0.01% to 1 % of your visitors will donate depending on your audience and your campaign. If I were you, I would not expect a business to be sustainable based on donations alone.