Looks like word is spreading from our soft launch of the beta. Shawn Collins from the Affiliate Tip blog posts up a nice blog review and video of ScratchBack in action.

It’s basically an online tip jar where friends and fans of a blog or site can make a donation, and in addition to good karma, they get a text or image ad that appears in the widget.

The pricing varies depending on the person featuring the TopSpot widget on their site or blog - it can be anywhere from $1 and up per ad slot.

The ad period is determined by the site or blog owner and it can be 24 hours, 1 week or 30 days. And the number of ads in the widget can be 5, 10, 15 or 20.

It’s a cool way for somebody to show their appreciation for a blog they read, and you could use it to advertise an affiliate link, too.

Just pick an affiliate program with the same target audience as the site or blog with the TopSpot widget. It’s a quick, cheap and easy way to test, and you might come up with a big money maker.