Two excellent books written in lay language are:

• Fishman, Stephen. (1995). The Copyright Handbook: How to Protect and Use Written Works, 2nd Edition . Berkeley, CA: Nolo Press.
• Fishman, Stephen. (1995). Copyright Your Software. Nolo Press.

Here are a few other Internet locations where I've found additional information related to this topic:

• Web-sites
  • Agmon, Jonathan; Halpern, Stacey; & Pauker, David. (1996).
    • General legal resources on the Internet
    • Intellectual Property
    (The above items point to the main entry point, and a short-cut to the most relevant area for this topic, for a bibliography prepared by students at Georgetown University Law School.)
  • Americal Intellectual Property lawyer's Association
  • Brinson, J. Dianne & Radcliffe, Mark F. 1994. Intellectual Property Primer for Multimedia Developers. Electronic Frontier Foundation.
  • Carroll, Terry. 1993. Usenet Copyright Law FAQ.
  • The Copyright Website.
  • Computer Professionals for Social Responsibility
  • The Creative Incentive Coalition, an industry group of "copyright owners" (not necessarily authors)
  • Cyberspace Law for Non-Lawyers, the web-site associated with an electronic seminar on various issues in communication and intellectual property law
  • The Digital Future Coalition, a group of "information providers" (including groups like library and faculty associations, among others)
  • Electronic Frontier Foundation, a group concerned about civil liberties, such as privacy and freedom of expression, in relation to new communications technologies
  • U.S. House of Representatives' Internet Law Library, a huge collection of links to law-related information (sources, references, and commentary) that the House has compiled and made available via the Internet
  • Loundy, David J. 1994-1995. Compter Information Systems Law and System Operator Liability Revisited. P-Law Journal Services. (Addresses BB SYSOPS directly, but most of the points are applicable to webmasters.)
  • Smith, Ashley. April, 1996. Observations from Stage Left. (A permissions-related story from the trenches of American theatre.)
  • Templeton, Brad. 10 Big Myths about Copyright Explained
  • Yahoo on Copyright

• Mailing List
  • CNI-COPYRIGHT
    From the Coalition for Networked Information (CNI), this is a mailing list devoted to copyright issues. To join, send a message to:
       LISTSERV@CNI.ORG
    with a single line of text in the body that says:
       SUBSCRIBE CNI-COPYRIGHT your name

• Usenet Newsgroups (selected entries from the 1993 Usenet FAQ)
  • misc.legal: the main newsgroup covering all legal issues, including copyright law and many other topics;
  • misc.legal.moderated: a moderated analog to misc.legal;
  • misc.int-property: addresses intellectual property; copyright, patent, trademark and trade secrecy, and their alternatives;
  • misc.legal.computing: covers legal issues related to computers, especially copyright and patent issues;
  • comp.software.licensing: trends, practices, and techniques in software licensing;
  • gnu.misc.discuss: frequently include issues of software patents, copyright, and "copyleft."