All 125 pixels wide x 125 pixels tall ads are $25 per month. 250×250 are $50 per month.
For your ad fee, you will reach 2500+ unique visitors per month and your ad will be seen 10,000+ times per month.
I accept PayPal for payment.
Any questions or comments can be directed to g.r.merica (at) gmail dot com. I will provide Google Analytics data.