Official Google Webmaster Central Blog
August 3, 2007 – 10:23 amLooking for additional insight on crawling and indexing websites for the Google Index? You may find the “Official Google Webmaster Central Blog” to be of interest. While its not updated frequently, it provides valuable insight and information for using the Google Webmaster tools and optimizing your site.
Also of interest may be the “Yahoo! Developer Network blog”.