This summer, we've been helping bring awareness to Mashable's ambitious Summer of Social Good campaign. The Summer of Social Good is described as "the first large scale online charitable campaign to raise funds strictly online through the power of Social Media and the Internet." The four charities this campaign will benefit are The Humane Society, LIVESTRONG, Oxfam America and World Wildlife Federation (WWF).

This week we invite you to share what you're doing to help the environment. What "eco good" do you do? Using the Twitter hashtag #ecogood, in one tweet or many share how you are doing your part for the environment.

For more on how these charities are focused on the environment, see Mashable's Summer of Social Good Helps Four Organizations Do #EcoGood.