These are publications of the Copyright Office. They provide
information on how copyright works and how to copyright something.
There are also links to forms and other publications.
Though this site's focus is on higher education, it has much
useful information for librarians and educators at all levels. Many
links are provided, with special emphasis on different types of media
including Internet and electronic publications.
The law has changed on what notice is required for copies made under
section 108. This affects interlibrary loan. The site also provides
links to CCG vs. CCL and the Digital Millenium Copyright Act of
1998.
Here's an online serials directory. Locate ISSN numbers, publisher
information, and publication information on over 150,000 international
periodicals. Or search by subject category for titles on a topic.