PersistIQ - It takes multiple touch points before a lead engages. PersistIQ automates the tedious parts while preserving the key human elements of sales
openDesktop.org - The website openDesktop.
Skrapp.io - Skrapp.io is the easiest solution to extract leads from Linkedin. In few seconds, you can find email addresses and launch your email prospecting project.
SourceForge - The Complete Open-Source and Business Software Platform.
Clearbit - Clearbit provides Business Intelligence APIs
Freecode - Freecode (formerly known as Freshmeat) is one of the legit open source development platforms that will be the key for developers and programmers to have a streamlined process via having enhanced collaboration and coding leverages.