One of the core philosophies of WordPress is to keep the core code as light and fast as possible but to provide a rich framework for the huge community to expand what WordPress can do, limited only by their imagination. #
One of the best features of WordPRess is its extensible plugin support, you don’t need to get your hands on the core to change the way it works.
Most of the plugins are plug and play, you just drop them in the plugins directory and they are ready to be used. This architecture allows you to extend the system while maintaining the core intact, so you can upgrade it and probably keep the same plugins.
Please notice that I’m a web developer, but no a formal programmer. So — even though I’ve tested them and I’m using most of them — i will take no responsibility if one of my plugins crash your system, destroy your datta or kill your dog, use them at your own risk.
That said, you are welcome to use them, modify them or make your own based on mine.

