Yahoo Closing their Auctions Service
mashable.com
mashable.com
We should also discuss failures like this on news.YC: there's as much to learn from them as from successes. Yahoo had a good product, brand, etc. but just couldn't compete with eBay's network effect. eBay had a huge first-mover advantage.
Luckily for Yahoo, Yahoo was the first mover in Japan, and it has much larger market share than eBay there.