I'm only halfway through the book, but Lessig begins by discussing the difference between "RO" and "RW" culture. Essentially, a ''Read Only" culture is one in which culture is consumed in a static manner: think about reading a book or watching a television program. To contrast, a "Read Write" culture is one in which people "read" culture and then "add to the culture they read by creating and re-creating the culture around them." For example, think of the millions of online satires on Youtube, where people splice together videos from different sources to make a point. Some of the examples that Lessig employs are the Bush/Blair parody and the music of DJ Girl Talk.
I guess, in a way, this blog is a wee foray into the RW culture: juxtaposing passages that I'm reading/have read with other things that strike my fancy. It never occurred to me that I was engaging in RW culture, but what a fascinating concept...
Addendum: You can download a free version of Remix here!
Addendum 2: A fascinating article on Remix culture and authorship here.