Visualized: Google charts the rise and fall of United States revenues

Where would we be without Google? Well, we wouldn't have pretty charts to gawk at, for starters! The Mountain View squad has pulled 10 years' worth of fiscal data from the US Census Bureau and compiled it into some gorgeous, infinitely sortable, and re-organizable graphs. They inspire both our admiration and apprehension, as their lines illustrate most starkly the shrinkage that replaced US economic growth over the latter half of the last decade. We've only picked out a few of the big states here, but all 50 are in Google's public database -- why not hit the source link and check up on your local governors' pecuniary (mis)management skills, eh?

WSJ: Google teams with MasterCard and Citigroup for NFC payments, also files patent app

Ever since the Nexus S and its nifty little NFC chip hit the market, there's been speculation that El Goog was planning a foray into the mobile payment arena currently occupied by the likes of Charge Anywhere. Now, it looks like that plan may be in high gear, as the Wall Street Journal reports that Google's secretly partnered with MasterCard and Citigroup to test out just such a system. According to the publication, the early demo pairs "one current model and many coming models of Android phones" with existing Citigroup-sponsored credit and debit cards, and is using the phones' NFC chips with those VeriFone readers we recently heard about.

What's more, a newly-published patent application from the crew in Mountain View may hint at the software behind such things. The application describes a service that sets up Google as a third-party broker who receives the shopping cart info of customers placing orders via a device (including those of the mobile variety), allows them to select shipping and other options, and provides the total order cost. It then collects payment, coordinates shipment, and forwards order information to the seller to complete the transaction. So companies can have Google handle all their payment-taking needs in return for getting a sneak peek at what folks are buying -- something that the WSJ's sources say might be a component of the setup Google's testing right now -- as opposed to other third-party services, like Paypal, that only obtain and exchange payment info with merchants. Looks like Alma Whitten (Google's Director of Privacy) has her work cut out assuaging the concerns such a system will inevitably create in an increasingly privacy-minded populace.

Sean Hollister contributed to this report.

Google brings Instant Previews to mobile, makes them seriously useful (video)

We've never had a use for Google Instant Search on mobile, so we didn't expect much when Google's Instant Previews invaded the smartphone realm as well. You know what? They're actually surprisingly useful. Instead of trying to cram additional information into Google's already-crowded mobile website, Instant Previews adds a little magnifying glass next to most every result instead, and clicking on the magnifier brings up a series of cached thumbnails of each page that you can scroll through in portrait or landscape modes. It's a very visual way of finding what you're looking for, and more importantly, it's quick even over 3G, saving time and mobile bandwidth that would otherwise be spent clicking through links one by one. Rather than decipher that long-winded explanation, though, why don't you try it out for yourself or watch our video demonstration after the break?

Google Social Search update makes your friends more relevant, difficult to ignore

Google's been talking up its Social Search function for sometime, but up until now your friends' tweets probably haven't made it to the top of your search results -- unless of course you're besties with TMZ, and you've been searching the Miley Cyrus bong salvia rip again. Thankfully, it looks as if that could change with El Goog's latest update to the socially minded search function, which now mixes updates from your contacts' various online accounts, like Twitter, Facebook, and YouTube, in with the standard search fare -- pulling them up from their previous position at the bottom of your results. Google's also included a photo and annotation to show the origins of relevant links, and given you the ability to manage how you connect your accounts -- either publicly through your profile or privately through your account. The new functions started rolling out yesterday, which means you could be seeing a whole lot more from those contacts you regretted friending in the first place. Isn't social media a wonderful / disastrous thing?