Google Contacts - Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.
Cakemail - Email marketing and transactional emails that deliver. Try it for FREE!
FullContact Card Reader - Automagically scan biz cards into LinkedIn/Gmail contacts
Hatchbuck - SMB sales and marketing software
Cardbox - Contacts reimagined as a social network ✨
Salesfusion - Salesfusion provides an easy to use marketing automation platform that allows sales and marketing teams to be successful.