今日注意到Google Webmaster tool 进行自从2006上线以来的首次更新，界面更加简单实用，但在功能方面没太大的动作，主要使webmaster 更加高效管理网站，和google友好互动。

官方如是说： Back in 2006, Webmaster Tools began as a way for webmasters to submit Sitemaps. Over the years we've constantly been adding and updating new features. The result was a set of tools we're pretty proud of—but also a site that had become pretty unwieldy and often difficult to navigate. That's why we decided to redesign Webmaster Tools from the ground up. We wanted a logically organized suite of features, and a cleaner, faster interface. So we talked to webmasters. We conducted user studies. We analyzed a lot of data. The result is a simpler, more intuitive navigation. Features are now grouped together in three categories: Site configuration (where you provide Google with information about your site), Your site on the web (where you can view Google data about your site), and Diagnostics (where you can get reports on any problems we encountered crawling your site). Our goal was to make stats and data more discoverable, while removing redundant pages and features (such as Index stats) that cluttered the interface and reproduced information available elsewhere.