Sign up for the No GMO Challenge, a 30-day challenge to avoid all GM foods.
At the No GMO Challenge site, we have videos and news articles you can link to or blog about or tweet, and you can also just write about your experiences going GM-free. On Mondays, join a weekly blog carnival to share stories, and on Thursdays enter to win non-GMO prizes.
Also at the Institute for Responsible Technology website, check out the Campaign for Healthier Eating in America 
What is a GMO, you ask?
Genetically Modified Organisms (GMOs) are the result of laboratory processes which artificially insert foreign genes into the DNA of food crops or animals. Those genes may come from bacteria, viruses, insects, animals or even humans. GMOs are not safe, but have been in the food supply since 1996. Most Americans say they would not eat GMOs if labeled, but the U.S. does not require labeling.