Net Art

Asseptic - Network of projects. A foyer leading to art, design, essays and web experiments.
http://www.asseptic.org/

äda 'web - Research and development platform, digital foundry with artists invited to experiment with, and reflect upon, the web as a medium.
http://www.adaweb.com/

IPL Pathfinder: Net.art - A research guide from the Internet Public Library.
http://www.ipl.org/div/pf/entry/48510

Post Media - A Post Media Network represents the physical and virtual structure composed of editorial, curatorial, and artist projects focusing on the different perspectives of new media using electronic and computer based mediums.
http://www.michelethursz.com/

Network Museum and Magazine Project - International version of the Japanese web site for Dia Nippon Publishing, showcasing diverse web works by new media artists, with theory articles.
http://www.dnp.co.jp/museum/nmp/nmp_i/eindex.html

Ljubljana Digital Media Lab - Open-access media laboratory, an initiative of the Open Society Institute, Slovenia, supporting education and research in many fields related to net.art. Operates a guest program presenting international and local artists.
http://www.ljudmila.org/

Rhizome ArtBase - Online archive of Internet art projects.
http://rhizome.org/art/

Turbulence - Facilitates work exploring characteristics of the Web medium, making use of multimedia and online technologies.
http://www.turbulence.org/

Experimental Intermedia - Experimental Intermedia has been supporting musicians and artists experimenting with "intermedia" since 1968.
http://www.experimentalintermedia.org/

Artnetweb - One of the first net.art hosts.
http://www.artnetweb.com/