What are the best customer relationship management (CRM) tools online for small business?

In my opinion following are few useful CRM tools:

1. Sage
2. Zoho
3. Capterra

Operational CRM-customer-facing applications such as sales force automation, call center & customer service support & marketing automation.

Analytical CRM-extrats in-depth customer history,preferences & profitailities from databases, allows predictions of customer value & behavior,allows tailor of information & customer needs.

Collaborative CRM-easy collaborations with customers, suppliers & partners, greater responsiveness to customer needs.

Portal-basred CRM-provides users with tools & information that fit their needs, provides instant access to all internal & external customer information, helps employees to respond to customer demands more quickly.

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