July 2011 marks the first month of Nielsen’s new “Total Internet Audience” metric, which incorporates hybrid audience measurement data to provide a holistic view of online audience activity. Google was the most visited website in the U.S. in July with 172 million unique US visitors.

The Nielsen Company announced the development of Nielsen Online Campaign Ratings, which will for the first time provide audience data comparable to Nielsen’s television ratings.

The Nielsen Company today reported overall online video usage and top online brands ranked by video streams for October 2009. Year-over-year, unique viewers, total streams, streams per viewer and time per viewer were up, led by a 26 percent growth in total streams.

From June to August 2009, Indian companies launched 3,778 online display ad campaigns, and of those, 13 percent were from personals or matrimonial web sites, according to a new report from The Nielsen Company.