Automatisch - Open Source Zapier Alternative
Automatisch helps you to automate your business processes without coding. Use our affordable cloud solution or self-host on your own servers.
Yii Framework: Best for Web 2.0 Development
PHP web application framework
OWASP
Open Web Application Security Project
Melody: Community Powered Publishing
An alternative to Movable Type 4
CodeIgniter - Open source PHP web application framework
Now this looks fab
ResourceSpace: Open Source Digital Asset Management (DAM)
ResourceSpace is a web-based, open source digital asset management system which has been designed to give your content creators easy and fast access to print and web ready assets.
Ultracopier, advanced tool for do file copy
File copy done right
Closure Tools - Google Code
Open source JavaScript compiler, debugger, library, and templating system from Google
BackMyFruitUp
BackMyFruitUp adds netatalk (AFP) functionality to a DroboShare. In turn it also adds support for TimeMachine backups to a Drobo via a DroboShare. Effectively it allows for a TimeCapsule-like backup system to a NAS drive. This project is fully tested and stable.
Open Atrium
Intranet, open source, built on Drupal with some nifty features. Looks nice too.