WordPress has long been a favorite software around here. It is open source, it has a great group of users and developers and it is better every time we use it. One of the best new advances has been the addition of WordPress Widgets.
In the original setup, they were added by means of a plug-in to WordPress (2.0, 2.0.1, 2.0.4, 2.0.5, 2.0.6, 2.0.7, 2.0.8, 2.0.9, 2.0.10, 2.0.11, 2.1, 2.1.1, 2.1.2, 2.1.3). However, the utility of them is so great, that they are now standard fare in WordPress 2.2 and following releases (to date, 2.2, 2.2.1, 2.2.2, 2.2.3, 2.3 and 2.3.1).
Originally the widgets were placed into your directory structure as explained on Autommatic’s How to Use a Widget Page. However, that information and directory structure are no longer accurate. You will now find your WordPress Widgets in a file called widgets.php located here:
…\wordpress\wp-includes\widgets.php.
If you need to modify your widgets, make an addition or otherwise address the default widgets that are included, this is the place.