A study reported on in the New Scientist has found that people lie more when they're talking on the telephone than they do when writing emails. The reason is that people are conscious of the fact that emails are saved and could come back to haunt them later, whereas telephone conversations don't tend to be recorded. Of course, this doesn't mean that more of the telephone calls we receive contain lies than the emails we receive. Just the opposite. Every day I'm flooded with emails that contain blatant lies, promising me instant riches and vast improvements in my physical prowess. This is because a small number of liars (spammers) can easily contact millions of people via email, whereas reaching the same number of people via telephone would be incredibly hard (though telemarketers give it their best shot).