GRATUITY

If you want do a symbolic gesture and add one x-note to the tip jar, you will enter the top spot list listed in left column (top left corner). You get a hyperlink to your site as a thank-you note. The $10 bill has the nickname ten spot, so I figured that USD 10 could be a nice and round gratuity figure. This donation widget is powered by Jim Kukral's site ScratchBack.

John Cox says it in a good way on his site:

If you enjoy John's site, one way to encourage him is to make a donation via PayPal. It's money well spent and deeply appreciated.