Just in case you have bumped into these terms – AJAX, Web 2.0 and Open Source while searching the internet, let me clarify in short:
What is AJAX?
What is Web 2.0?
To a large extent, Web 2.0 has been born from AJAX and other technologies that move the web far beyond a static presentation of “brochure-like” information to actual usable applications and programs. It involves High end interactivity for web visitors and feature rich development environment for web developers to create excellent web interfaces beyond imagination.
What is Open Source?
Open source represents a movement of web programmers who believe that the internet should provide useful information and applications for free. Many times, projects that are available open-source have requests for donations at their home sites for supporting these developers. Many excellent open source projects die because of the scarcity of funds.
For more detailed discussion check back later.