Check out Switch, the new media art journal of the Cadre Institute,
online at:

http://switch.sjsu.edu/

our current issue as well as our previous issue were both about net.art,
containing theoretical writings on the subject, links to projects, and
an attempt at a taxonomy of net.art (which classifies web-based artworks
according to certain categories such as formalist, collaborative,
poetic, ironic, unintentional, contextual, etc.)