A year ago, human resources consultant John Sullivan asked one of his employees to cruise through Google's job listings before Sullivan paid a call on the companyBased on the company's "help wanted" ads, Google seemed to be working on a set of programs that would compete with Microsoft's Office suite. "You're nuts," Sullivan recalls telling his employee. "They don't do that-that's not sexy." Lo and behold, last October, Google launched its would-be Office killer: Google Docs & Spreadsheets.