orsenfelt
Which is where the anti-trust issue obviously comes in. All retailers can submit their stock feeds to all comparison engines - but only Google Shopping gives you the opportunity to flow through to a pinned spot at the top of the world's largest search engine too.
At some point they moved towards Google Checkout (Google Merchant/Wallet?) verification and the number of stores you could actually find with it dropped dramatically.
Now it's just high street retailers, a handful of the bigger online places and eBay. Not only is it not as useful, it's killed off the sites that came before it as they tried to adapt and survive.
That's exactly what they are doing. The only sites the BBC are legally allowed to operate within the UK have to be publicly funded.