Guest..I didn't know a campaign was being co-ordinated re ethical shopping either. But it is very easy to support the Fairtrade principle. Some of the big name supermarkets do stock a wide range of their produce, and it is easy to substitute some of your weekly basics for those offered by Fairtrade instead. We have been doing this with tea, coffee, fruits and chocolate for a couple of years at least.
It obviously all adds up, and maybe one day will make the big producers rethink their practices.