I've been using a new app this week that I like. It helps you learn about the social impact of products you are buying.
Choose what is important to you. (they are all important!)
I'm saying NO to GMO's. (Oregon narrowly lost a ballet measure this past fall on the labeling of GMO's) Join the "campaign" of your choice, then start scanning bar codes of your favorites and see if you want to continue to support them!
I'm trying out many new brands this week because I'm letting my dollar speak for me.