March 8, 2011 No Comments 100 Free Starwood Preferred Guest Starpoints Earn 100 Starpoints when you pledge to participate in Earth Hour on March 26, 2011. If you’re not already a member you can sign up here. 100 Free Starwood Preferred Guest Starpoints – EXPIRED Facebook Twitter Add Comment Notify me of follow-up comments by email. Notify me of new posts by email.