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
Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
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.