Easily upload ad images and ad code to your sidebar. For those that don't need or want a complicated ad management system.
First: Turn off any ad blockers you might have installed. They prevent ads from appearing!
Other than that, there aren't any special instructions for installing this plug-in. Once installed, go to Appearance -> Widgets, and look for the "Ad Widget" widgets!
You can also go to Settings -> Ad Widget for a video demo on how to use it.
Also, think about trying Selfie.