eBay is placing advertising on the View Item pages of seller listings. The ads are appearing in listings on the Australian website (regardless of where the seller is located), primarily in the media category. Sellers were already irked at the ads on other areas of the site, including ads at the bottom of search results from sites that compete with paid listings.
Sellers were outraged when eBay first began running ads in 2000, and in recent years, eBay has been more agressive with advertising on the eBay marketplace. When Yahoo began running ads on listing pages in 2005, it first removed all seller fees.