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.
1CRM - 1CRM is an All-in-One CRM solution for sales, marketing, project and order management. Download 1CRM Free, and find out why it's right for your business.
Free Address Book - In our contact management software you can store fast and easily name, phone numbers, birthdays, address, company name, city, mobile numbers, insurance and loan info, e-mail addresses.
Pobuca Connect - Connect with your contacts.
Clearbit - Clearbit provides Business Intelligence APIs
Contact Boss - CRM database management tool for managing contacts