Upcall - Upcall enables you to crowdsource your outbound calls. Collaborate with 1000+ on-demand callers worldwide for sales, marketing and customer support calls. Free trial.
InStream CRM - Business relationship management platform - CRM alternative
Veloxy - A sales enablement app. Your calendar on steroids!
Gmail CoPilot by cloudHQ - Easy CRM: View all past conversations with an email contact
LiteStart - LiteStart is a cloud based solution helping businesses to market, sell, service and operate their products.
Crmble - Easy peasy crm for Trello