Suffice it to say that Shelly DeMotte Kramer has had more than a few professional lives. She’s lived the corporate life, the direct-marketing life, the jewelry-designer life, the single-mom life, the mom-with-adult-children-and-babies- simultaneously life, and the serial- entrepreneur life. Most people will tell you that she’s forgotten more about the Internet and how to use it for good than many of us have ever known. Today’s life? Kramer is running…