14. Using Plug-Ins
Plug-ins extend what WordPress can do by adding new functionality and features with minimal effort on your part. A dizzying array of plug-ins, both paid and free, is available for WordPress. In fact, for many people, this extensive selection of plug-ins is why they choose WordPress over other blogging tools.
What the heck is a plug-in? It’s a file (or several files, depending on how complicated the plug-in is) that you upload to your blog.
To see the default plug-ins in your WordPress installation, click the Plugins link in the navigation bar of the WordPress administration interface (Figure 14.1 on the next page). WordPress opens the Plugins screen (Figure 14.2 on the next page), which displays the currently installed plug-ins. ...