Check this link: Maketradefair.com. This site belongs to Oxfam and it has a petition you can sign to make trade fair. They also have a campaign going on around fair prices for coffee producers (Stir It Up).
Which fits very nicely with this piece by George Monbiot : Why I was wrong about trade. This is a very thoughtful, though brief, article, which goes into the thinking behind Monbiot's rejection of the simplistic idea of localisation as the "correct" alternative to coercive and exploitative global markets.