For those of you that enjoy using Google Webmaster Tools, you'll be delighted to know that Google is kicking it up a notch!  This time around, you'll find new and improved ways to maintain your site's SEO.  Here are just a few previews of what you can expect:
 
1.  Perhaps my favorite of the improvements... Now you can manage your sitelinks (the sublistings that appear after your #1 search listing) .  You can easily block unwated sitelinks under the "Links" section of the tools page.
 
2.  Query stats have been extended to include a searchable date range.  Search from the past 7 days up to 6 months.
 
3.  The Webmaster Message Center will now include receipts for spam reports, paid link reports, reconsideration requests, and crawl rate change requests you've filed.
 
4.  Google will now notify you of "high URL counts," which could be a signal that you have duplicate content on your page.
 
I think this will definitely add value to Google's already-useful toolbox for those of us that are always looking to improve our site.