Videomaker – Learn video production and editing, camera reviews › Forums › Technique › Graphics and Visual Effects › Card Flip in After Effects
First off you'll need AFX or a similarly capable compositing program to pull this off properly. You don't even need that program to do this. To do it you'll need to understand how to setup 2D compositions in 3D space, how to make Null Objects and track their movement in addition to linking your elements all together. Best place to learn all that for AFX is at: videocopilot.com.