Soon after Google launched its most ambitious foray into social media, a number of companies have already set up hacked pages on the service, most notably Ford Motor Co. In response, Google has set up an application page where firms can apply to become part of Google's initial test phase for business pages. Most likely, Google's forthcoming branded accounts will be somewhat similar to Facebook's company pages, which have become the dominant and driving force behind that social network's advertising revenue. Meanwhile, Google said it can barely keep up with requests. Christian Oestlien, the lead product manager for social advertising at Google, talked to Ad Age about how the company plans to bring in big companies into its budding social network. Get the full story at Ad Age