How can we force google or yahoo to support wikileaks.?

there must be some way we can exercise our right to know the truth. google and yahoo are big and powerful enough to resist pressure from governments or military if they want to. how much would it be worth to one of them to block this kind of censorship. thats one way. the other would be to boycot them all till one showed some guts and stood up and said 'we have the right to diseminate information and report the news and the citizens of the world have the right to know who they can trust' SO.