As you may already know, Word provides a host of Internet functionality, including the capability to email documents directly from Word. You can even use Word to create an email signature file to be included with your messages. Start by selecting Tools, Options and clicking the General tab. Next, click Email Options and enter a name for your new signature (such as Standard Business Signature) in the line at the top of the dialog box. Enter the content of the signature itself in the larger box below (you can format the text using the formatting buttons above the box).
When you finish, click OK. Your email signature becomes an AutoText entry, and you can insert your email signature into any document by choosing Insert, AutoText, Email Signatures and clicking the desired signature.