What the heck is a widget, you ask? Widgets arrive under several names including gadget, widget, blidget, and others. If you use iGoogle for a homepage, then you're familiar with Google gadgets.
Gadgets, widgets, whatever, deliver unique information to a web page. There are gadgets for weather, news, blogs, YouTube, games, puzzles, art, etc.
The ACE widget that I've created displays a Google map of all public boat landings and kayak launches that I've found so far in South Carolina's ACE Basin.