We have found a Web site, www.mediafinder.com/, which contains a
database of extensive information on US and Canadian Periodicals and
Publications.  This site can be searched by a variety of methods,
including industry type, geographical location, etc.   We are looking
for alternative Web sites that contain the same type of information. 
The database would include contact information, editors names,
physical addresses, e-mails, and Web site information.  Ideally, these
publications would also accept press releases.

Ulrich's Periodical Directory:

http://www.ulrichsweb.com/UlrichsWeb/