Bing Cashback, aka Bing Shopping, launched a nice little feature which lets shoppers post their purchase or potential purchase to their Facebook profiles.
In a blog post, Program/Product managers from Bing wrote:
With a single click you can ask for advice from your friends on Facebook and followers on Twitter for their take on a product you saw on Bing Shopping. You can even share it the old fashioned way – over email! We see our users using it not only to get feedback on price but on whether a particular product would look good on them, has a better model, etc.
As VentureBeat wrote: “The implementation is simple, which means it works and isn’t confusing.”
Many shopping engines allow you to email a product listing to a friend, but I believe Bing is only the second shopping engine (Sortprice being the first) that allows shoppers to quickly and easily post products to their Facebook wall.
As Facebook, YouTube, and others grab more time-share from everyone’s lives, it’ll be more and more important for the shopping engines…well, everyone…to integrate with Facebook. As everyone has been discussing over the last 2 years, more and more purchases or maybe just as important, conversations that lead to purchases, will take place away from the actual source of the purchase. You might eventually buy from Thompson Cigar, Evogear, or Best Buy, but you’ll have discussed the purchase with your friends or experts off of those sites. This is one of the reasons SingleFeed, among others, is enabling merchants to list products on Facebook.
Expect lots of activity in the Facebook shopping space in the coming quarters. I’d be surprised if Facebook didn’t have a flagship deal with someone like Amazon before the holiday shopping season. Imagine Amazon allowing anyone on Facebook to easily become an affiliate and get paid to list products, share products, recommend products, review products, etc. on Facebook. And in the near term, I don’t think it’s about in-Facebook stores ala 1800Flowers, I think it’s about driving views back to the merchant.

Hi Brian,
Thanks for this article – as always.
I thought you and your readers might like to check out that for several months now Shopping.com has been enabling shoppers to share any product listed on our site, via Facebook, Twitter, email, and more:
http://www.shopping.com/xPO-Apple-iPad-32-GB-Wi-Fi
Moreover, when a member reads or writes a Review, Guide, or Wishlist, they can share those too:
http://www.shopping.com/xPR-Yamaha-Yamaha-NP30-Np-30-76-Key-Lightweight-Digital-Grand-Piano-With-Touch-Response~RID-78964305
And thanks to Facebook Connect option in registration, you can opt-in to automatically publish the content you write on Shopping.com to Facebook. All these apply in our 5 countries.
Thought you might like to know. Feel free to contact me any time. Best,
Robert (Director, Shopping.com)
Thanks i used to run a cashback site , had to sell it as it became to big for me , now into running a voucher site (and also passing on my knowledge to anywhere daring enough to try devloping such a site) . They are really popular but the engines are saturated so you have to try and be the best .