Here are the top 10 MySpace advertisers ranked by impressions in May 2006 according to Nielsen//NetRatings, making up approximately half of the 28.9 billion monthly impressions (thousands):

1. United Online, Inc.

2,864

2. Verizon Communications, Inc.

2,281

3. General Electric Company

1,799

4. Colonize.com

1,719

5. BellSouth Corporation

1,593

6. MarketLabs.net

1,170

7. CoolNewClothes.com

1,097

8. Time Warner Inc.

1,017

9. Microsoft Corporation

827

10. Mate1.com

759

Note: among home and work users

Source: Nielsen//NetRatings, June 2006

Here’s some interesting demographic information from comScore and Nielsen//NetRatings:

Triple-digit percentage increases in the number of visitors to many social network sites in the past year

Users spent an average of 28 minutes on MySpace each time they visited the site in May, but it was not the stickiest social network site

Social network site visitors are getting older; around one-third of US visitors to MySpace and Facebook, for example, are between 35 and 54

For more demographic information on social networking websites check out the marketing forum.