I'd like to invite you to contribute to a little brainstorming session, to see if we can come up with a better text than "Your continued donations keep Wikipedia running!" for the site notice shown to unregistered users:
http://en.wikipedia.org/wiki/Wikipedia:Donation_appeal_ideas
Several people have also complained that the text is too small. I tend to agree and think that it would be fine in normal size, perhaps in a different color than the main article text.