A Microsoft buyout of Yahoo will close yet another exit for venture-backed startups, but another buyer just opened shop in town. CBS Interactive plans to open a new office in Menlo Park. And frenetic dealmaker Quincy Smith is here to buy. CBS CEO Leslie Moonves recently told conference attendees that "online revenues are north of $200 million, growing 30 to 40 percent," but Merrill Lynch analyst Jessica Reif Cohen said the company needs to make an acquisition soon to keep pace. Smith agrees. Last year, he promised to buy the next YouTube, "only a year earlier, when they were 1/32nd of their size." Tiny companies with zero revenues but excruciatingly high burn rates? Quincy, we'll keep you posted.