Conferences are usually dead boring. Technology helps; nobody with a Blackberry will leave it in his pocket when faced with a day of presentations. But not everyone resorts to electronic devices. The creative among us draw, filling empty spaces on notepads, napkins and scraps of paper.Someday scientists, or maybe historians, will analyze conference art and draw remarkable conclusions about 21st century corporate behavior. But for now, it's just fun to see how creative minds cope in desperate circumstances.