Google may have been on pins and needles while the FCC scrutinized its white space wireless database over the spring, but it can relax this summer -- the FCC has given the database the all-clear. The approval lets Google serve as one of ten go-to sources for white space devices needing safe frequencies in the US. It also lets those with interference-prone devices, such as wireless microphone users, register the airwaves they consider off-limits to white space technology. The clearance won't have much immediate effect when very few Americans are using the spectrum, but it's a step forward for rural broadband rollouts and other situations where long-range, unlicensed wireless comes in handy.