Newsknife, a site that rates news sites based on Google News performance, has released its May 2008 list of 155 sites in the U.S.

The site sampled 109,702 listings by 3,942 sites for 689 news items in 2008, and judged performance based on how often they appeared on Google News.

Based on how relevant the sites were on the main U.S. Google News site, the top 10 were:

1. The Associated Press
2. The New York Times
3. The Washington Post
4. The Los Angeles Times
5. USA Today
6. The Boston Globe
7. The Houston Chronicle
8. The Mercury News
9. The Chicago Tribune
10. The Washington Times

For the complete list, visit Newsknife.com.