Instead of the author's home page, there can also be a generic "About" document, containing
copyright notices, disclaimers and the likes. This prevents cluttering up each
document with long signatures. This reduces the information block to
just something like
Copyright © 1996 by Name with the word "Copyright" a link to
that About document.
It is also important to include contact information for comments, suggestions and the likes. This is usually done by adding a "mailto" URL with an e-mail address for this purpose. Always make sure you include the address itself in the text, so people can e-mail you with their favourite mail program. When the document is printed, for example, the link itself no longer works and the URL behind it is no longer visible.