A telephone-based survey of adults who use the Internet found that more than three-quarters receive spam daily. The average spam messages per day is 18.5 and the average time spent per day deleting them is 2.8 minutes.

The loss in productivity is equivalent to $21.6 billion per year at average U.S. wages, according to the National Technology Readiness Survey produced by Rockbridge Associates, Inc., and the Center for Excellence in Service at Maryland's business school.

I don't know about you, but I get exponentially more then 18.5 SPAM emails a day. Because of my SPAM filter I do however keep the time it takes to take care of that SPAM to under 5 minutes though, thank god!

What I would really like to see in one of these studies is more then 1000 people surveyed. Another wonderful fact they pulled out of this: 4 percent of the recipients have bought something advertised through spam within the past year.

Thanks people! You are the reason this "business model" works.