Nielsen just bought the remaining BuzzMetrics shares it didn't own, reports MediaWeek.

The deal gives Nielsen complete control over both BuzzMetrics and NetRatings. Once each deal is closed, the two entities will merge, appearing as Nielsen/NetRatings and Nielsen BuzzMetrics, respectively. The single division will then have the power to track online word-of-mouth and provide site visit metrics on where those mentions occurred.

Nielsen has recently been making moves toward creating a single offering for information subscribers.