El Robot - The best startup resources, in Slack
Netbeans - NetBeans IDE 7.0. Develop desktop, mobile and web applications with Java, PHP, C/C++ and more. Runs on Windows, Linux, Mac OS X and Solaris. NetBeans IDE is open-source and free.
codebender - The Largest Arduino Playground In The World. Create, share and run your code anywhere.
Eclipse - Eclipse is an open source community, whose projects are focused on building an open development platform comprised of extensible frameworks, tools and runtimes for building, deploying and managing software across the lifecycle.
198X - Over-the-top arcade action meets coming-of-age drama
IntelliJ IDEA - Capable and Ergonomic IDE for JVM