While the PTC wants you to thank attorneys-general from the states that supported the California side in the Schwarzenegger vs. EMA case (i'm sure we'll get right on that), the ECA wants you to write letters to your local newspaper. These "letters to the editor" should lay out the arguments supporting the EMA's side of the case: that games are free speech, are as important to culture and movies and literature, are fun, can educate and motivate, lead to exercise, etc.
If you need some help writing a letter, check out action.theeca.com. In addition to offering a form letter, the "action alert page" offers a search function to find a newspaper near you.
You might wonder, "why should I bother writing a letter to people that generally don't care one wit about video games?" Because, like everything else in life, you have to defend the things that are important to you. If video games are important to you then you should do everything you can to defend them - including writing letters.
[GamePolitics is a publication of the ECA.]