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.
Clearbit - Clearbit provides Business Intelligence APIs
Veloxy - A sales enablement app. Your calendar on steroids!
ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.
Kit CRM - A CRM for your Facebook page
InsideView - InsideView aggregates and curates all the company and contact data, news and social insights, and professional connections you need to do business better.