Google has added a new locale-aware crawl configurations for Googlebot. It crawls Web site pages, and when it detects local or specific content, the engine can serve the content based on the
request's language and perceived location. As the crawling configurations are enabled, companies may notice changes in how Google crawls and serves sites in Google search results without altering the
content management server or server settings.
Read the whole story at Google Webmaster Central Blog »