Computer Science
Social Impact of the Internet

• All About the Internet -- from the Internet Society, includes several articles on the history of the Internet and a timeline
• An Atlas of Cyberspaces -- an atlas of maps and graphic representations of the geographies of cyberspace.
• Citizen Media Law Project -- "The guide is intended for use by citizen media creators with or without formal legal training, as well as others with an interest in these issues, and focuses on the wide range of legal issues online publishers are likely to face, including risks associated with publication, such as defamation and privacy torts; intellectual property; access to government information; newsgathering; and general legal issues involved in setting up a business."
• Cyberspace and Critical Theory
• Digital Divide Network -- the basics of the issue, current news and research, funding information, etc.
• Early Computer Security Papers
• Folksonomy
• GigaLaw -- legal news and info on electronic media and the Internet. 
• Internet Archive Project--Building a Digital Future. It's attempting to maintain the ephemeral internet in permanent form (they're the ones who donated a complete copy of the web to the Library of Congress).
• Internet Issues -- from the Internet Society, includes articles on access, security, societal impact, spamming, children, etc.
• Internet Law and Court Decisions
• Internet Traffic & Demographic Statistics
• The Living Internet -- developed by a computer science PhD, this site provides history and discussion of the Internet and Internet issues.
• One Year Later: September 11 and the Internet -- in-depth report on research and surveys done by the Pew Internet Project about how the terrorist attacks affected online and content and changed the way Americans feel about Internet use.
• Psychology of Cyberspace--an excellent set of papers and links.
• Podzinger - search engine for podcasts.
• Social Impact of Computing -- articles from ITWorld.
• Web Credibility Project --  from Stanford University, this site offers full-text of the ongoing research project to "understand what leads people to believe what they find on the Web".