Where does the money come from ?

I’ve just read this from Jeremie Berrebi’s blog (http://www.berrebi.org/2008/01/17/largent-sort-de-lordinateur-ou-quoi/ in French) .

"My 5 year old son tries to understand how I make a living while he sees me all the time sitting in from of my laptop.

‘Daddy, how do you make money ? Where does it come out of the computer ?’

Had I been a baker it would be a lot easier to explain…"

Jeremie is the founder of the online store creation platform Zlio but I’m sure that anyone working online can relate to this experience…