Leave it to Google (GOOG) to get creative a year after its IPO. Today’s announcement of a $4 billion secondary will come with rampant speculation as to how the company will use the money. It’s true that Google has been hiring like crazy and expenses will likely grow faster than sales. Their cash flow can cover those expenses without selling more shares, so the more likely use for the proceeds will be larger scale acquisitions. It will be interesting to see if and who they buy, and how Wall Street reacts to the fit of such deals. The stock is down today on the news, which is expected when any company offers stock, and the P/E on 2006 estimates is about 38 times.