The evolution of religions...as ever so often nobody could explain it better than Jared Diamond. He also seems vastly better at saying these things without antagonising people as much as Richard Dawkins or Daniel Dennett.
Which information should be on the internet? Should everything be recorded kept and kept in archives? For most things there is a specific time to express them. If expressed at the wrong time they are not adequate, misunderstood, boring. A blogger reflects this wonderfully. The most recent things are on top. Older things are in archives and dissapear naturally into nothingness at some point. Mondpanther