Bing Webmaster Tools
Microsoft has unleashed a substantially improved Bing Webmaster Tools. Among other highlights in the litany of new features are: the ability to tell the Bing crawler to slow down indexing during specific hours; an all-new Index Explorer tool that lets you see a more up-to-date version of Bing’s indexing details, improved perforamnce of the tool, and more extensive data; and the ability to give access (in read-only, read-write, or admin access levels) to other users.
You can check out details on features and how to get started here.
Raven Tools, which provides SEO and Social Media tools, has integrated the Google Webmaster Tools API, allowing users to access a wide variety of additional resources. This includes adding and verifying sites, updating preferred domain settings, viewing related keywords (and adding them directly to the Raven Tools Keyword Manager), viewing GWT messages and crawling issues, and viewing/adding sitemaps.
Check out the official announcement here.
SEO for Firefox
This trusted tool from SEO Book has been updated for compatibility with Firefox 4, improved speed, increased compatibility with the “new Google search result format” (presumably social search elements), and some bug fixes.
You can view the details of the update, as well as past updates, here.