Inspired by Jim Gray's famous "20 queries" method, the AstroInformatics2012 is set forth to come up with 20 scenarios of astroinformatics for connecting astronomical research with education. I believe the “education” here is for us in computing to learn about the data and computational challenges with Petabytes of astronomical data, for astrophysicists to learn about the latest computing technologies, and for students to learn how astronomical research is conducted today. I’m looking forward to the outcomes on Facebook.