Google Shopping Trends
It shouldn’t be any secret that what happens at Google becomes their data to do with as they please. (Sorry that wasn’t a very catchy slogan like that Vegas place.) Google is using their Checkout data to show you shopping trends. Now of course this isn’t perfect because it only shows shopping trends for data they have access to….primarily their customers using their pay services. If you use Google Checkout on your site, how do you feel about them using your sales data? No doubt you agreed to it when you signed up for the service.
Currently it isn’t working too well, but then it’s beta. When it is up and running properly my guess is that it will provide a window into certain industries. Just keep in mind that it is not complete data and their isn’t much of a history yet either. This is why they call it Beta.