WiseStamp - WiseStamp allows you to easily create and implement slick and unique email signatures for your business.
Communifire - Enterprise Social Collaboration Software
MySignature - MySignature is FREE Email Signature Generator that helps to create Professional Signatures for major email clients such as Outlook, Gmail...
Workplace by Facebook - Connect everyone in your company and turn ideas into action.
Sigstr - Email signature marketing
DigitalChalk - Online Training Software and Learning Management System (LMS)