"We chose the environment because it's pretty adaptable," said Ta'eed. "Next year we'll try tackling something a little more pressing, maybe not so popular."
Big name participants include GigaOm, Lifehack.org, and some Google blogs. Participating bloggers can post with whatever slant they want, as long as the topic is green. And as with most social media efforts, participants are grappling with measurement:
"How do you measure effectiveness?" asked LifeClever's Chanpory Rith. "Does it fail if it doesn't get on Digg?"
But here's proof that just about any topic has a green bent these days. Ta'eed threw out a couple of possibilities for next year's event, and both could easily be turned green.
"Next year it could be global poverty," said Ta'eed. "Or whaling!"