Widgets are small web objects that can be installed on a web site or blog in minutes. You simple copy a line of code and paste it in your page html and a fully functional widget will show up on your page.

A gadget is just a larger widget. A gadget will take up a large portion of a page. Where a widget will fit in to a right or left nav bar, a gadget will take up the whole page. This is a general description.

Both widgets and gadgets are installed by pasting a small amount of code in to the location you wnat it to show up. When you publish the page, it will be there, fully functional.

Custom Avenue has created a few widgets and a few gadgets.

Check them out:
Widget & Gadget List

They’re fun and they are free. All feature updates are also free and they are automatic.