May 2009 data from Nielsen Online shows that people continue to spend more time on social networking and blog sites than ever before, with total minutes increasing 82 percent year-over-year and the average time per person increasing 67 percent year-over-year in May 2009. Twitter.com was the fastest-growing Web brand in May 2009, increasing 1,448 percent year over- year, from 1.2 million unique visitors in May 2008 to 18.2 million in 2009. Despite being the fastest-growing brand year-over-year, Twitter's month-over-month growth has begun to slow, increasing 7 percent from April. The average time per person on Twitter increased 175 percent year-over-year, from 6 minutes and 19 seconds in May 2008 to 17 minutes and 21 seconds in May 2009. However, month-over-month growth was flat, decreasing one percent from April 2009.

Facebook and Myspace Stats

• With 144.3 million unique visitors, Facebook was the No. 1 global social networking destination in May 2009—the 7th month in a row that Facebook has ranked No. 1
• May 2009 also marked the 5th month in a row that Facebook has been the No. 1 social

  networking site in the U.S., garnering 75.4 million unique visitors—a 190 percent increase

  over May 2008

• Myspace.com continued as the top social networking site when ranked by total video

  streams in May, with 116.1 million video streams

• Unique viewers of video content at Myspace.com increased 22.9 percent month-over-month,

  from 9.9 million in April 2009 to 12.2 million in May 2009.

Download Nielsen Online's May 2009 data on social networks.