Due to a spat between Google and eBay, the latter has pulled domestic ads from the former. This decision will have a negative impact on the earnings of both companies. The argument is over Google Checkout and why eBay is not allowing this form of payment in their auction network. This could turn ugly.
Disclosure: I own shares in both and if I take off my writer hat and put on my investor hat, this is not good news. Read more here.