This.

FYI, not affiliated with website, but they take donations.. help a brother/sister out.

I rarely donate but this is such a great resource I have contributed multiple times.

Whatever wikipedia is doing with the money, it's working. For me, it's the most valuable site on the internet. I think it's a great example that you can provide quality content and services and not have to be "ad supported". Open source too. Win, Win, Win.