¿What can we do to improve the way corporations behave?

As globalization changes the way we see corporations and the market itself, we find harder every day to make contributions in terms of changing some companies' behaviors ethically speaking. I mean, when some global companies do things innapropriately (for the environment, for their employees, for the costumers they're selling...) is very difficult to just demand them and have sufficient power to change that.

So, I think that in this situation, first we can speak with some people of the company involved in order to let them know we are worry for some of the things they're doing and try to make them understand that their costumers (we) are not going to continue aquiring goods or services from them if they keep behaving like that. Second, we can promote and publicize those wrong actions in our personal networks (as facebook, twitter, mails, etc.) and spreading them around the people we know to create a powerful voice to make corporations react and take some action.

By this, I just want to let the people know that if corporations feel threatened by anybody that could create a "bad voice" from the company's name, they would probably take some action on the issues and try to correct their behaviors in order to keep having a good image and satisfying their costumers.