I'd also recommend considering the following, keeping in mind that policy issues related to convergence also matter a lot, hence the Benkler reference.
B. Lentz, McGill University
Convergence Culture: Where Old and New Media Collide (Hardcover)
by Henry Jenkins
The Wealth of Networks: How Social Production Transforms Markets and Freedom
by Yochai Benkler
New Media: A Critical Introduction (Paperback)
by Martin Lister (Author), Kieran Kelly (Author), Jon Dovey (Author), Seth Giddings (Author), Iain Grant (Author)
RG Lentz
NYC