Google has updated Google Webmaster Tools to add new dashboards, updated the navigation and added a compact view for the home page site-list.
The dashboard is what you see when you go to a site profile. On this view, you are able to see crawl errors, search queries and sitemaps indexing graphs right there:
Google also updated the navigation on the left hand side, here is the new navigation:
Dashboard
Messages
Configuration
Settings
Sitelinks
URL Parameters
Change of Address
Health
Crawl Errors
Crawl Stats
Blocked URLs
Fetch as Google
Malware
Traffic
Search Queries
Links to Your Site
Internal Links
+1 Reports
Optimization
Sitemaps
Remove URLs
HTML Improvements
Content Keywords
Other Resources
Labs
Custom Search
Instant Previews
Site performance
Google explains each category as follows:
Configuration: Things you configure and generally don’t change very often.
Health: Where you look to make sure things are OK.
Traffic: Where you go to understand how your site is doing in Google search, who’s linking to you; where you can explore the data about your site.
Optimization: Where you can find ideas to enhance your site, which enables us to better understand and represent your site in Search and other services.
I like.
Forum discussion at Google Webmaster Help.