sorted by date 
HeidiSQL
SQL ClientSQuirreL
Java Based graphical SQL ClientTarget Management (RSE)
Eclipse plugin to access remote systemsmuCommander
cross-platform file managerOpenGoo
Open source web collaboration platformPunyMCE
lightweight rich text editor written in JavaScriptOpenEMM Home
Open source e-mail marketing toolsFPDI
Import existing PDF documents into FPDFEvolution for Windows
Open source E-Mail and Groupware Client for WindowsSQL Buddy - Web based MySQL administration
PHP based MySQL database managerCSS Tools: Reset CSS
reset stylesheet is to reduce browser inconsistenciesOpen Geospatial Consortium
non-profit, international, voluntary consensus standards organization for standards in geospatial and location based services.PostGIS
Adds GIS support for PostgreSQLGeodjango
geographic web frameworkRapyd
Minimalistic PHP5 frameworkPydev
Plugin for Python development in EclipseSemantik (previously Kdissert)
Open source mindmapping-like tool for KDE4Krumo
Krumo is a replacement for print_r() and var_dump()Chandler
open source Note-to-Self Organizeroauth-php
PHP library for OAuth consumers and servers
