Payment methods accepted for donations and advertising.
Xoom bank transfer (Xoom is a PayPal-owned service).
Wire Transfer.
Bitcoin (BTC): 1ACpw9mkiAvvXAVdLViAS348Ady6pJvK8z
You can send Bitcoins using Bitcoin Core (the official Bitcoin app), BitPay. Coinbase can be used to purchase Bitcoins with US dollars and to send them.