Link - > SPG PROMO for 100 points Earn 100 Starpoints when you pledge to participate in Earth Hour on March 26, 2011 When it comes to helping the planet, small steps can make a big difference. That's why we're asking SPG® members around the world to join us in observing Earth Hour this year. Pledge to switch off your lights for one full hour on Saturday, March 26, 2011,from 8:30 to 9:30 p.m. local time, and receive 100 bonus Starpoints®. Join the more than 500 Starwood hotels and resorts around the world that will be observing Earth Hour this year. It's a small commitment to the environment we all can keep. Together, we can make a bold statement against climate change. To learn more about Earth Hour go to earthhour.org. T&C Update: Edited the post to make the promo link more prominent.