Open Source Marketing?

So, we had to check out Slashdot.org today, to see what one of the Internet's most anti-marketing communities have to say about "The Hidden (In Plain Sight) Persuaders," the New York Times article that we covered here yesterday. Worth the read.

The ethical questions will persist, and someone -- if not the network -- will certainly figure out a better way to work with the new hidden persuaders. But in the meantime, posters on Slashdot appear to be amused that Madison Avenue may have finally "figured out what open source developers knew all along." Definitely an angle worth exploring -- what could inspire so many different types of people to work for little or no material gain? Contrast and compare the open-source software community and the masses who pitch for companies like BzzAgent. What's the common element?