In Yahoo! Widgets, a Widget is a specialized application that relies on the Yahoo! Widgets application to do most of its work. The reasons for this reliance are twofold: reducing Widget size and standardizing the behavior and authoring of Widgets in general. These factors make Widgets easy to author, download, install, and use.

Standard "built by Yahoo!" Yahoo! Widgets use many Yahoo! services to provide slices of the information they contain. The services include Yahoo! Mail, Flickr, Yahoo! Maps, Yahoo! News, Yahoo! Notepad, Yahoo! Search, Yahoo! Finance, Yahoo! Weather.

In addition, there is a Yahoo!-authored Widget for Widgets themselves, the Yahoo! Widget Gallery Widget. This displays downloadable Widgets that do a myriad of useful or just plain fun little things. It's a way to help you make further explorations into the world of Widgets.