Rick Borstein at Acrobat for Legal Professionals has a great post on creating and using a transparent signature stamp. This is something I do fairly often when generating a letter that I am sending via fax. I simply draft the letter, apply a stamp of my signature, and fax the letter using a virtual fax service. Thus, I can send a letter and not have to kill any trees to do it.

Related posts:

1. Creating a Transparent Signature Stamp
2. Signature Stamp v. Digital Signature
3. A Primer on Electronic Signatures