Microsoft Publisher

Microsoft Office Publisher
Software to create, customize, publish materials such as newsletters, brochures, flyers, catalogs, and web sites. Publish easily on the desktop printer, at a copy shop or commercial print shop, or directly to the web.
http://office.microsoft.com/publisher/

MSDN: Publisher Developer Portal
Add-on for Microsoft Publisher that contains over 50,000 detailed and accurate network equipment symbols from over 1000 manufacturers.
http://msdn2.microsoft.com/en-gb/office/aa905474.aspx

On Microsoft Publisher and more
Weblog by Jeff Bell, the program manager for Microsoft Publisher.
http://blogs.msdn.com/jeff_bell/

Wikipedia: Microsoft Publisher
Encyclopedia article about the program, including background information and release history.
http://en.wikipedia.org/wiki/Microsoft_Publisher