Google expanded its AdWords Beta Interface to more U.S. advertisers, as well as additional countries: U.K. and Australia, and languages: Spanish, Japanese, French, and Brazilian Portuguese. Here are a few of the exciting features we're testing:

• Spot trends over time with custom performance graphs on every campaign management page.
• Insight across ad groups: Focus on the high-impact areas of your account with new roll-up tabs on every page. You can see and edit keywords, placements or ads from all ad groups on a single tab.
• Change a keyword or bid in-line instead of loading a separate page.
• Improved content network performance through a new Networks tab.

More info: AdWords interface website