Specifically, Wikileaks has won a case against Visa for cutting off their credit card donations:

The Reykjavík District Court has ruled that Valitor, formerly known as VISA Iceland, violated contract laws by blocking credit card donations to Wikileaks, according to a press release posted on the whistleblowers’ Twitter account.

The court also ordered that the donation gateway should be reopened within 14 days otherwise Valitor will be forced to pay a fine of $6,200 daily. Valitor CEO Vidar Thorkellsson told Bloomberg, however, that the company would appeal the ruling. He declined to comment further.

WikiLeaks founder Julian Assange said “This is a significant victory against Washington’s attempt to silence WikiLeaks. We will not be silenced. Economic censorship is censorship. It is wrong. When it’s done outside of the rule of law its doubly wrong. One by one those involved in the attempted censorship of WikiLeaks will find themselves on the wrong side of history.”