To be fair to all sponsors, all levels except Masthead and Page are displayed according to the amount over the required minimum is received. Any copy, including banners, to be included on the page is the responibility of the sponsor. A s mentioned above, ads will be sorted by donation amount. Highest donation gets top position in list. A ds will be sorted by donation amount.
Highest donation gets top position on page.
Size of ad in kilobytes, height and width will be limited. Banners appear closer to the top of the page than the simple listing. A ds will be weighted by donation amount. Highest donation gets more impressions through the banner. Ads will be 440w x 44h, 20K gif.