Better attack: reduce the credit card usage, and try to pay more with cash. As both MasterCard and Visa (the ones against Wikileaks) take the gross of its revenue from retail and pay by credit, that could really hurt them... but without doing anything illegal. It's just business: you fuck Wikileaks, I reduce your profit, dear [put your favourite megacorp name here].
Boycott list:
* Amazon (Amazon stops hosting WikiLeaks website [Reuters, 20101202])
* Tableau Software (Another Falls: Tableau Software Drops Wikileaks Data Visualizations [20101202])
* Everydns.net (WikiLeaks fights to stay online after US company withdraws domain name [guardian.co.uk, 20101203])
* Paypal (WikiLeaks loses PayPal revenue service [cnn.com, 20101205])
* PostFinance (Swiss bank freezes WikiLeaks founder's legal defense fund [rawstory.com, 20101206])
* MasterCard (MasterCard pulls plug on WikiLeaks payments [cnet.com, 20101206]
* Visa (WikiLeaks loses PayPal revenue service [ibnlive.in.com, 20101207])
* Twitter??? (it was or it wasn't censorship?)
Boycotts are good way to go. But for giant companies like Amazon and Paypal, it is unclear that they would be able to correlate determine why their sales are going down.
Regarding Everydns.net, the impression I got was they withdrew their service not because of any specific disagreement with Wikileaks, but because it was negatively impacting their other customers (if 10,000 people kept requesting Wikileaks, the 20-30 other people trying to request other sites had to wait a lot longer). I'd agree with them on this one.
Boycott list: