clickcreations® and its company ruralwebsites ltd are a firm believers in open source software. 

"Open Source" is the term used for software that is available for free and can be modified to suite the user.  Wikidepia (itself an open source project) best explains here:  http://en.wikipedia.org/wiki/Open_source

As well as offering a mirror site for the gammu, wammu, phpmyadmin, and various other open source/GNU projects we try and use as much open source in our work as well.  Our websites are all hosted on Debian machine using apache web servers, php as the main programming language (with a bit of help from bash!) and mysql databases.  We are also indepted to JQuery who has opened the fabulous world of web 2.0 to our websites.