EBay just sold a large portion of Skype after a long legal dispute with Skype's founders. What interested me was the Skype's code evolved from the founders' earlier venture, the file-sharing system, Kazaa. In effect, the experience with the "illegal" Kazaa allowed the founders to develop technology that had a great value, especially for people communicating internationally.
The founders, Niklas Zennstrom and Janus Friis, blocked the sale for a long time on the grounds that EBay violated an agreement not to tamper with the code without their approval. In effect, Ebay acted like a pirate, while the pirates became anti-pirates.
Perhaps someday someone will catalog all the other benefits that that the pirates developed.
Here is some background information:
http://michaelperelman.wordpress.com/2009/11/20/how-digital-piracy-creates-value/
-- Michael Perelman Economics Department California State University Chico, CA 95929
530 898 5321 fax 530 898 5901 http://michaelperelman.wordpress.com