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.
CircleCI - CircleCI gives web developers powerful Continuous Integration and Deployment with easy setup and maintenance.
Veloxy - A sales enablement app. Your calendar on steroids!
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
Kit CRM - A CRM for your Facebook page
Travis CI - Focus on writing code. Let Travis CI take care of running your tests and deploying your apps.