No Wikipedia, I will not support your bullshit for the cost of a latte
Seriously, just have an ad or two and quit begging for donations. How do you "lose independence" by creating a simple Google AdWords account and displaying one little banner ad every 10000 pages? Seriously, grow up and have common sense.
Don't get me wrong, I think Wikipedia is great and want to see it survive as long as possible, but by no means is its value mutually exclusive with displaying ads.