Yahoo provided the following statement:
“At all levels of the company, Yahoo! is constantly exploring ways to improve the consumer and advertiser experience, including aligning products and services against the company’s vision to be the center of people’s online lives. We have decided to enter into a strategic partnership with PriceGrabber to power the Product Submit functionality of Yahoo! Shopping. The partnership will provide users, merchants and advertisers with increased service and support. This partnership will combine the Yahoo! Shopping and PriceGrabber marketplaces allowing merchants and advertisers to gain access to a larger shopper base and users to gain access to even more products. All parties will continue to be a part of the overall Yahoo! experience and now will benefit from increased innovation thanks to the scale and resources this partnership provides. Yahoo! will continue to monetize the site through ad sales and a revenue share with PriceGrabber.”
Relatively quietly Yahoo has decided to outsource most of Yahoo Shopping to PriceGrabber. This is analogous to what Yahoo is doing with Microsoft-Bing in search — just not with Microsoft. Merchant listings will now come from PriceGrabber and e-commerce sellers will only be able to get into Yahoo Shopping via PriceGrabber or Yahoo Search (Bing).
This is interesting on many levels. It could signal the arrival of a “vertical outsourcing” strategy that moves to other verticals: autos, real estate, travel, local . . . It also seems to represent something a loss for Microsoft. While PriceGrabber has a larger product database than Microsoft there’s probably more than that in Yahoo’s decision not to simply work with Microsoft here, which would seemingly make sense given the search relationship.
Perhaps Yahoo doesn’t want to be too dependent on Microsoft across too many fronts. However, Bing sponsored search ads will be the ones that appear at the top of search results in Yahoo shopping (once the regulators sign off on the deal).
Let’s look at a page. The following represents my speculation about who will provide what going forward:

Yahoo! has released this help page that will answer most questions.
