Google announced they have made major improvements to the Ad Review Center within Google AdSense.

The ad review center lets publishers monitor and approve/reject ads from advertisers. The new features make it easier for publishers to monitor and make the ad reviews. Google AdSense added four features:

A new option to “show reviewed ads”
View ads by new ad size widget
A related ads feature that shows ads with the same logo in them
The Ad review center has a new look with a brand new user interface designed for quick and simple navigation

Here are some pictures:

Forum discussion at Google+.