Spider Control
Google Webmaster Tools has stepped it up again by offering more features and controls over how Google bots view your site. One of the most noteworthy of options is the ability to control how often your site gets spidered, rather how much bandwidth is used during the indexing process.
In addition, a key statistic tool added is the ability to see how many urls your sitemap submitted. This is especially important to insure that your site is being crawled as deeply as possible.
Check it out and more at the Google Webmaster Blog.
