We got a note from Ben Greenman last week about his latest project, a multmedia celebration keyed to the Jewish high holidays called 10Q: Renew, Reflect, React. Starting with Rosh Hoshanah last Friday, participants will post their answers to a series of ten questions: What’s a significant experience that has affected you over the past year? What’s something you would have done differently? and so on, through to September 28 and Yom Kippur. You can keep your answers to yourself, or share them with the rest of the participants—and in September 2010, they’ll be emailed back to you as a sort of electronic time capsule.