I have a few 125×125 sponsorship buttons available for December. These buttons are displayed on right side of the page and randomized with each page load to give advertisers even exposure. The price is $500 per month. Advertisers can leverage their button buy with a text ad in the RSS feed (over 14,000 readers) for only $100 more.
If you wish to take advantage of this offer, paypal $500 (or $600) to firstname.lastname@example.org and send the ad creative to the same email. The button can not be bigger than 15K in size. Animation allowed but no Flash. RSS text ads can have a full 80 character title and 150 letter description. Of course, all new advertisers receive a welcome post.