Widgets are elements often in the left or right columns of a blog, that enhance its usefulness.Widgets pull content or services from some other place on the Web, and put it into our personal page.It is really handy and easy to use.
Typically, widgets are built with Flash software from Adobe, or the JavaScript programming language, which ensures that they work with most Web browsers.Basically widgets can be group into three categories.
1.Self-expression widgets, like photo galleries, games or YouTube videos that you like.
2.Widgets that generate revenue for a blogger, like a box that displays auctions from a particular eBay category, or a blogger’s favorite DVDs from Amazon.com.
3.Site-enhancement widgets, like discussion forums, news feeds or a guest book, which provide better utility for your Web site
I think Widgetbox(www.widgetbox.com) is a site that spotlighting the newest and most popular widgets ; it offers more than 500 widgets.Widgets don’t benefit only blog visitors; some exist primarily for the benefit of blog publishers, showing, for instance, which other blogs are linking to their posts.
Most widgets are available free, though they usually carry links or logos that promote the site that supplies them, and they sometimes have advertising.Why not just try it out yourself?But remember don't over doing it!