Add content and features to your header, sidebar, footer and elsewhere.
Widgets rock! You’ll be using widgets constantly on your blog.
A widget is literally just a holding place for where code can be added that then automatically displays something new and wonderful, even if you don’t know how to write code!
Here’s what WordPress has to say about widgets:
The things that you see visually on your blog outside of the regular content that you create, are often PLUGIN-enabled via a widget. Widgets create blocks of space that are holders for extended content like videos, buttons, forms, Facebook activity feeds, links, ads, etc. The most popular widget-enabled areas of your blog are the sidebar and footer. In fact, look at your PSMU blog, as everything that you see in the sidebar and footer is displayed via a widget. Widgets can also be enabled in the header or within blog posts and pages depending on the WordPress theme that you are using.
Widgets can make a lot of things really easy! For example, watch the tutorial on how to put an ad into your sidebar.
Another great example is how you can copy and paste code that you are presented with online into a blank widget, known as a “Text Widget.” You often find code that you can copy and paste when you are trying to embed something from a social network. A very common example is embedding YouTube videos…where they give you code to embed on your site that you can copy and paste.
USING A WIDGET: Just go to Dashboard > Appearance > Widgets. Choose any available widgets and simply drag and drop to the desired Widget area.