Reference

Google Webmaster Central
http://www.google.com/webmasters/

Webmaster Central Blog
http://googlewebmastercentral.blogspot.com/

via

Blog News Channel - 2006-08-14 - Google Sitemaps Renamed
http://google.blognewschannel.com/index.php/archives/2006/08/14/google-sitemaps-renamed/

Search Engine Roundtable - 2006-08-07 - Google Sitemaps Renamed to Webmaster Central
http://www.seroundtable.com/archives/004309.html

clmemo@aka - 2006-08-22 - お盆の blogosphere 出来事ブックマーク
http://at-aka.blogspot.com/2006/08/blogosphere.html